WinRAR 5.50 (64-bit)

# Bugs fixed:
- WinRAR did not store NTFS "Compressed" attribute, when creating RAR archives.
- WinRAR crashed in command line mode if @filelist parameter was present and 'filelist' did not exist. This bug affected only WinRAR.exe, not RAR.exe.
- if -x*somefolder* exclusion mask was specified when archiving and if name of current folder contained 'somefolder', WinRAR excluded all files and stopped creating an archive.
- GUI self-extracting archives did not work in Windows Preinstallation Environment (Windows PE).

* WinRAR can create ZIP archives of practically any size. 2 GB archive size and 65535 file number ZIP limitations of previous WinRAR versions are not valid anymore.
* WinRAR can create multivolume ZIP archives, which are also known as split ZIP files. ZIP volumes have names like 'volname.zip', 'volname.z01', 'volname.z02'. Use a volume with ".zip" file extension in all archive processing operations like starting extraction or opening an archive. Unlike RAR volumes, ZIP volumes cannot be self-extracting. WinRAR needs to have access to all ZIP volumes of multivolume file set at the same time, when creating or unpacking them. So it is impossible to create or unpack ZIP volumes on removable disks, one volume per disk. You need to create them all in the same folder.
* Added the high precision file time support in ZIP archives. WinRAR can store and extract modification, creation and last access file time in ZIP archives with 100 nanosecond precision. You need to set "High precision modification time" option in "Time" part of archiving dialog to store all 3 times in archive. Set appropriate "File time" options in "Advanced" part of extraction dialog to choose times to extract.
* Added support for Unicode names stored in ZIP extra field data. Different ZIP tools store Unicode names either in file header or in ZIP extra field and now WinRAR can correctly process both types of Unicode names.
* "Synchronize archive contents" option and -as command line switch are supported in ZIP format.
* Modifications of switch -ag behavior:
> -ag can be used with all RAR and WinRAR commands, not just with archiving only;
> 'N' format character behavior differs in archiving and non-archiving operations. When archiving, it is incremented until the first unused name is found. In non-archiving operations like extracting it selects the existing archive preceding the first unused name;
> 'I' format character allows to specify minutes regardless of presence and position of 'H' (hours) in format string. It can be used instead of 'M' (minutes), when you wish to place minutes before hours or do not need hours at all.
* By default, WinRAR proposes to update an archive if viewer modified an opened file or created any new files. New "Ignore modifications for" option in "Settings/Viewer" dialog allows to disable such behavior. You can enter one or several file masks separated by spaces here and WinRAR will not prompt to update an archive if file created or modified by viewer matches one of these masks.
* Changes in volume size input field. Now you can select size units in the drop down list to the right of volume size. Previous way to define size modifiers, by entering 'k', 'm', etc. character after the numeric size value, is also supported.
* Changes in "Predefined sizes" in "Define volume sizes" dialog. Floppies and ZIP disks are replaced by 5 MB and 100 MB volumes, added new entries for maximum FAT32 file size and for Blu-ray disks.
* New "Wipe files if password is set" option in "Options" page of archiving dialog. If you prefer to always delete encrypted files securely, you can enable "Wipe files if password is set" in the default compression profile.
* New "Wipe temporary files/Encrypted only" option in "Settings/Security". It allows to use a slower and more secure delete for temporary files extracted from archives identified by WinRAR as encrypted. Quick delete is used for all other temporary files.
* Changes in "Convert archives" command:
> now it is possible to convert encrypted archives. Previously "Convert archives" command skipped them. Though, if you still prefer to skip them, you can do it by enabling "Skip encrypted archives" option in "Convert archives" dialog. It might be useful if you wish to run the conversion command in unattended mode, avoiding password prompts;
> special "rar2" archive type, which was specific for RAR 1.x and 2.x archives, is removed. Now "rar" archive type controls conversion of all versions of RAR archives. Since the convert command does not need to detect RAR archive version anymore, the initial search for archives is performed faster, resulting in shorter delay before displaying "Convert archives" dialog.
* New -log[fmt][=name] switch allows to write archive and file names to log file in archiving command for RAR and ZIP formats and also in extracting, deleting and listing commands for RAR format. This switch is especially useful, when you need to further process an archive created with -ag or -v switches, because -log provides the archive name generated by WinRAR.
* New -@[+] switch allows to process all parameters starting from '@' character either as file names (-@) or as file lists (-@+).
* "Setup program" SFX options are moved from "General" to "Setup" page of "Advanced SFX options" dialog. Both "Run after extraction" and "Run before extraction" are now multiline, so it is possible to specify several setup programs for same SFX archive.
* "SetupCode" SFX script command instructs SFX archive to wait for termination of setup program and return the exit code of setup program increased by 1000 as the exit code of SFX executable. GUI equivalent of this command is "Wait and return exit code" option on "Setup" page of "Advanced SFX options" dialog.
* SFX does not support "S" (create in the top level of Start Menu) "Shortcut" command mode anymore. Recent Windows versions do not allow programs to add items to the top of Start Menu.
* Volume size in archiving and wizard dialogs can be specified as a decimal fraction. Decimal mark is defined by Windows regional settings. -v command line switch also allows decimal fractions. In command line mode the dot (.) is always used as the decimal mark. For example, -v1.5g switch means 1.5 gigabytes.

#Bugs fixed:

* switch -n did not work properly, when used together with -ep1 and file masks including paths;
* SFX archives in "Temporary mode" returned the exit code of setup program increased by 1000 even if "Wait and return exit code" option was not enabled.

# Improved detection of UTF-8 encoding in file names in ZIP archives. WinRAR attempts to recognize Unicode names, even when UTF-8 flag is not present in ZIP archive headers.
# Bugs fixed:
* If switch -t was set in RAR environment variable, WinRAR "View" command failed to open archived files
* ""Autodetect" string" option in "Define volume sizes" dialog did not work
* If "Split to volumes, size" in default compression profile was set to "Autodetect", "Delete" and "Add comment" commands refused to modify ZIP archives.

- Bugs fixed:
a) WinRAR could fail to display archive comments, when browsing RAR archives created with WinRAR 2.9 and older;
b) Switch -z without a parameter did not read the archive comment from stdin in console RAR version.

* Volume size in archiving and wizard dialogs can be specified as a decimal fraction. Decimal mark is defined by Windows regional settings.
-v command line switch also allows decimal fractions. In command line mode the dot (.) is always used as the decimal mark. For example, -v1.5g switch means 1.5 gigabytes.
* "Add" command in first WinRAR beta did not allow to create a console SFX archive using WinCon.SFX module.
* If ZIP archive contained ZIP Unicode path extra fields, the first beta could not unpack files in subfolders of such archive.
* "CD700" and "FAT32" predefined volume sizes did not work properly.

* WinRAR can create ZIP archives of practically any size.
- 2 GB archive size and 65535 file number ZIP limitations of previous WinRAR versions are not valid anymore.
* WinRAR can create multivolume ZIP archives, which are also known as split ZIP files.
- ZIP volumes have names like 'volname.zip', 'volname.z01', 'volname.z02'.
- Use a volume with ".zip" file extension in all archive processing operations like starting extraction or opening an archive.
- Unlike RAR volumes, ZIP volumes cannot be self-extracting.
- WinRAR needs to have access to all ZIP volumes of multivolume file set at the same time, when creating or unpacking them. So it is impossible to create or unpack ZIP volumes on removable disks, one volume per disk. You need to create them all in the same folder.
* Added the high precision file time support in ZIP archives.
- WinRAR can store and extract modification, creation and last access file time in ZIP archives with 100 nanosecond precision.
- You need to set "High precision modification time" option in "Time" part of archiving dialog to store all 3 times in archive.
- Set appropriate "File time" options in "Advanced" part of extraction dialog to choose times to extract.
* Added support for Unicode names stored in ZIP extra field data.
- Different ZIP tools store Unicode names either in file header or in ZIP extra field and now WinRAR can correctly process both types of Unicode names.
* "Synchronize archive contents" option and -as command line switch are supported in ZIP format.
* Modifications of switch -ag behavior:
> -ag can be used with all RAR and WinRAR commands, not just with archiving only;
> 'N' format character behavior differs in archiving and non-archiving operations. When archiving, it is incremented until the first unused name is found. In non-archiving operations like extracting it selects the existing archive preceding the first unused name;
> 'I' format character allows to specify minutes regardless of presence and position of 'H' (hours) in format string. It can be used instead of 'M' (minutes), when you wish to place minutes before hours or do not need hours at all.
* By default, WinRAR proposes to update an archive if viewer modified an opened file or created any new files. New "Ignore modifications for" option in "Settings/Viewer" dialog allows to disable such behavior.
- You can enter one or several file masks separated by spaces here and WinRAR will not prompt to update an archive if file created or modified by viewer matches one of these masks.
* Changes in volume size input field. Now you can select size units in the drop down list to the right of volume size. Previous wa to define size modifiers, by entering 'k', 'm', etc. character after the numeric size value, is also supported.
* Changes in "Predefined sizes" in "Define volume sizes" dialog.
- Floppies and ZIP disks are replaced by 5 MB and 100 MB volumes, added new entries for maximum FAT32 file size and for Blu-ray disks.
* New "Wipe files if password is set" option in "Options" page of archiving dialog. If you prefer to always delete encrypted files securely, you can enable "Wipe files if password is set" in the default compression profile.
* New "Wipe temporary files/Encrypted only" option in "Settings/Security".
- It allows to use a slower and more secure delete for temporary files extracted from archives identified by WinRAR as encrypted. Quick delete is used for all other temporary files.
* Changes in "Convert archives" command:
> now it is possible to convert encrypted archives. Previously "Convert archives" command skipped them.
- Though, if you still prefer to skip them, you can do it by enabling "Skip encrypted archives" option in "Convert archives" dialog. It might be useful if you wish to run the conversion command in unattended mode, avoiding password prompts;
> special "rar2" archive type, which was specific for RAR 1.x and 2.x archives, is removed. Now "rar" archive type controls conversion of all versions of RAR archives.
- Since the convert command does not need to detect RAR archive version anymore, the initial search for archives is performed faster, resulting in shorter delay before displaying "Convert archives" dialog.
* New -log[fmt][=name] switch allows to write archive and file names to log file in archiving command for RAR and ZIP formats and also in extracting, deleting and listing commands for RAR format.
- This switch is especially useful, when you need to further process an archive created with -ag or -v switches, because -log provides the archive name generated by WinRAR.
* New -@[+] switch allows to process all parameters starting from '@' character either as file names (-@) or as file lists (-@+).
* "Setup program" SFX options are moved from "General" to "Setup" page of "Advanced SFX options" dialog. Both "Run after extraction" and "Run before extraction" are now multiline, so it is possible to specify several setup programs for same SFX archive.
* "SetupCode" SFX script command instructs SFX archive to wait for termination of setup program and return the exit code of setup program increased by 1000 as the exit code of SFX executable.
- GUI equivalent of this command is "Wait and return exit code" option on "Setup" page of "Advanced SFX options" dialog.
* SFX does not support "S" (create in the top level of Start Menu) "Shortcut" command mode anymore. Recent Windows versions do not allow programs to add items to the top of Start Menu.

* Added support for file sizes stored in binary format in TAR archives. Some TAR archives use the binary size format instead of octal for files larger than 8 GB.
* Bugs fixed:
- "Repair" command failed to properly reconstruct structure of RAR archives, which contained at least one file with packed size exceeding 4 GB.
This bug did not affect the recovery record based repair. It happened only if recovery record was not found and WinRAR performed reconstruction of archive structure;
- even if "Do not extract paths" option in "Advanced" part of extraction dialog was set as the default, WinRAR still unpacked file paths if called from Explorer context menu
- after entering a wrong password for encrypted ZIP archive, sometimes WinRAR ignored subsequent attempts to enter a valid password
- "Wizard" command did not allow to create self-extracting and multivolume archives, when compressing a single folder or a file without extension
- "Import settings from file" command did not restore multiline comments in WinRAR compression profiles
- when converting RAR volumes having name1.name2.part#.rar name format, "Convert archives" command erroneously removed ".name2" name part. So resulting archive had name1.rar file name instead of expected name1.name2.rar
- RAR could crash when creating a new archive with -agNNN switch if archive number in generated name was 110 or larger;
- WinRAR failed to display non-English file names in 7-Zip archives properly if they used a non-default code page. It was the display only problem, such names were unpacked correctly.

* Added support for file sizes stored in binary format in TAR archives. Some TAR archives use the binary size format instead of octal for files larger than 8 GB.

* Bugs fixed:
- "Repair" command failed to properly reconstruct structure of RAR archives, which contained at least one file with packed size exceeding 4 GB.
This bug did not affect the recovery record based repair. It happened only if recovery record was not found and WinRAR performed reconstruction of archive structure.
- even if "Do not extract paths" option in "Advanced" part of extraction dialog was set as the default, WinRAR still unpacked file paths if called from Explorer context menu.
- after entering a wrong password for encrypted ZIP archive, sometimes WinRAR ignored subsequent attempts to enter a valid password.
- "Wizard" command did not allow to create self-extracting and multivolume archives, when compressing a single folder or a file without extension.
- "Import settings from file" command did not restore multiline comments in WinRAR compression profiles.
- when converting RAR volumes having name1.name2.part#.rar name format, "Convert archives" command erroneously removed ".name2" name part. So resulting archive had name1.rar file name instead of expected name1.name2.rar.
- RAR could crash when creating a new archive with -agNNN switch if archive number in generated name was 110 or larger.

* RAR decompression speed is improved. Depending on data type, decompression can be up to 30% faster than in previous versions.
Both the general RAR algorithm and most of special RAR multimedia methods benefit from this improvement. The only module of RAR algorithm, which is not affected, is "Text compression" method.
* Changes in ISO support:
- UDF support is upgraded to UDF 2.50 revision. It makes possible to unpack most of Blu-ray ISO files;
- when browsing UDF ISO file, UDF revision number is displayed after the "UDF" format name in WinRAR address bar and in archive information dialog;
- WinRAR sets the folder modification date when unpacking folders stored in UDF and ISO9660 files.
* Changes in password dialog:
- WinRAR uses the same format of password dialog both when archiving and extracting, so "Show password" option is available also when extracting;
- "Organize passwords..." button in password dialog provides access to password organizer interface, where you can specify your frequently used passwords. You will be able to access these saved passwords using the drop down list or autocomplete feature in password dialog.
It is important to know that saved passwords are not encrypted and anybody having access to your computer can view them. Use "Organize passwords" feature only if your computer is protected from unauthorized access;
- "Use for all archives" option is available in password dialog when unpacking several archives at once. You can utilize it to apply an entered password to all archives.
If you use this option with an empty password, WinRAR will skip all encrypted archives;
- Unlike previous versions, the password from default compression profile is not used for extraction.
If you wish to use the same password for all extracting archives, press "Organize passwords..." button in the password dialog and define a new password entry, specifying "*" file mask in "Select for archives" field.
* In Windows 7 WinRAR will display the total operation progress also on WinRAR icon on Windows taskbar. You can disable it using "Taskbar progress bar" option on "General" page of WinRAR settings.
* Numerous Unicode support improvements allow to process non-English file names more smoothly. These improvements include:
- better Unicode handling in WinRAR in "Rename", "Convert", "Find" and other commands, in folder tree panel, in password request dialog and in many other parts of WinRAR interface;
- correctly displayed Unicode names in WinRAR items in Explorer context menus;
- Unicode support in .lng files, making WinRAR localization possible for Unicode only languages.
* Changes in -x switch syntax. Now you can specify a wildcard exclusion mask for folders. Such mask must have the trailing '' character, like -x*tmp* or -x* emp
* New "Extract relative paths" option in "Advanced" part of extraction dialog. If you browse some archive subfolder in WinRAR shell and enable "Extract relative paths" option, the path part up to and including the current subfolder will be removed from extracted file paths.
For example, if you are inside of "BackupMyData" archive folder and extract "Images" folder, it will be extracted as "Images", not as "BackupMyDataImages".
This option is the new default extraction mode, but you can change the default back to WinRAR 3.x style. Just select "Extract full paths" and then press "Save settings" in "General" part of extraction dialog.
* Windows 98, Windows Me and Windows NT are not supported by WinRAR and WinRAR self-extracting modules anymore. Minimum Windows version required for WinRAR 4.0 is Windows 2000.
If you need to run WinRAR on older Windows, you can download previous WinRAR versions from ftp://ftp.rarlab.com/rar
* If TAR, TAR.GZ or TAR.BZ2 archive contains symbolic or hard links and if destination file system is NTFS, WinRAR will create these links when unpacking such archive. WinRAR will create symbolic links as symbolic and hard links as hard in Windows Vista and newer and it will create all links as hard in older Windows.
If destination file system is FAT32 or any other not supporting file links, WinRAR will skip links when unpacking TAR, TAR.GZ and TAR.BZ2 archives.
* Recovery volume processing involves less disk seek operations resulting in higher performance.
* You can select Windows 7 library in tree panel in extraction dialog and WinRAR will use its default save location as the destination path.
* "Report" command allows to select HTML, Unicode text and usual text as output format for report file. Unlike previous WinRAR versions, now WinRAR preservers Unicode characters in reports when using HTML or Unicode text format. So non-English characters in file names will be displayed properly in such reports.
* Message list in GUI SFX archives displays only operation status and error messages. It does not contain names of all extracted files anymore. This change improves the speed and reduces memory requirements for SFX archives containing a large number of files. Also it makes easier to locate error messages, because they are not hidden among extracted file names.
* GUI SFX archives display "Extract" button instead of "Install" if no "Setup" or "Presetup" commands are present in the archive comment. If you prefer "Install" button, but do not need to execute any setup programs, you can add "Setup=<>" command.
* WinRAR displays the current percent above the operation progress bar when repairing an archive containing the recovery record and when processing recovery volumes.
* WinRAR limits the maximum possible volume size to 4 GB minus 1 byte when creating RAR volumes on a disk with FAT or FAT32 file system in volume size autodetecting mode. These file systems do not support 4 GB and larger files.
* If "Wait if other WinRAR copies are active" option is enabled and WinRAR waits for another copy, you can press "Continue" button in command progress window to force WinRAR to stop waiting. So now "Continue" button allows to override the state of "Wait if other WinRAR copies are active" option for current operation.
* WinRAR displays one password request instead of two, when saving an encrypted file back to RAR or ZIP archive after modifying it in some external editor. Previous WinRAR versions usually requested the password twice, both when extracting the original file and archiving its modified copy. Only RAR archives with encrypted file names were processed with the single password prompt.
* New error code 10 ("no files") is added to list of error codes returned in command line mode by RAR and WinRAR. This new code can be returned by archive, extract, delete and repair commands. It means that RAR did not find any files matched the specified file or archive mask.
* File name area in file overwrite dialog occupies several lines now. It makes possible to display much longer names.
* Now switch -ep3 converts not only disk letters, but also UNC paths. So \servershare will be converted to __servershare when archiving and restored to the original \servershare when extracting with -ep3.
* New "Background extraction" option in "Advanced" part of extraction dialog places WinRAR into background, when extracting files. You can save its default state with "Save settings" button in "General" part of extraction dialog, just like for other extraction options.
"Background archiving" option from the default compression profile does not affect the extraction behavior anymore.
* "Mode..." button in operation progress window is enabled also when extracting or testing archives. It provides access to "Command parameters" dialog, where you can set "Turn PC off when done" option for extraction and test operations.
Previously this dialog was accessible only when archiving.
* Bugs fixed:
- renaming a file in archive could also rename all other files with the same name in other folders of the same archive;
- previous versions displayed the wrong total packed size in "Info" command for multivolume CAB archives;
- in ZIP archives 'U' (update) and 'F' (fresh) commands could erroneously update even files not specified in the command line. It happened only for files in current folder which names matched files in ZIP archive. This bug was not present in usual 'A' (add) archiving mode.

* Bugs fixed:
- "Prediction order", "Memory to use" and "Channels" fields in "Advanced compression parameters" dialog, "Lowest allowed ratio" in archive conversion dialog, "recovery volumes" field in archiving dialog did not provide enough space to enter maximum values allowed for these parameters. Now the width of these controls is increased.

# Bugs fixed:
- "Use for all archives" option in the password dialog did not work for several 7-Zip archives with encrypted file names;
- "Rename" command could fail to rename archived folders with non-English names in RAR archives created by old WinRAR versions;
- when WinRAR was running in the background, its tray icon messages were truncated if longer than 63 characters.

- Now WinRAR command line mode -ibck switch is applicable to most of archive processing operations, not just archiving and extracting.
- Default compression profile options do not modify extraction behavior anymore and "Background archiving" option does not work for extraction.So we added the separate "Background extraction" option in "Advanced" part of extraction dialog. You can save the default state of this option with "Save settings" button in "General" part of extraction dialog,just like for other extraction options.
- Switch -cfg- disables use of "Default folder for archives" from WinRAR settings in WinRAR command line mode. Also it forces WinRAR to ignore "Select for archives" fields in "Organize passwords" dialog.
- "Mode..." button in the operation progress window is enabled also when extracting or testing archives. It provides access to "Command parameters" dialog, where you can set "Turn PC off when done" option for extraction and test operations.
- Previously this dialog was accessible only when archiving.
- Double clicking on a password record in "Organize passwords" dialog works like "Edit" button, opening "Password information" dialog.Previous beta versions ignored the double click in "Organize passwords".

# Bugs fixed:
- "a" and "s" commands with -iicon and -iimg switches did not remove temporary files in WinRAR temporary folder after completion;
- "Enable autocomplete" option in "Organize passwords" dialog did not allow to disable the autocomplete feature in Windows XP.

# Bugs fixed:
- previous beta failed to create ZIP self-extracting archives;
- cursor was not placed to renamed file after renaming files in archive;
- previous beta versions could truncate some of files,extracted from ISO 9660 archives.

1. Now switch -ep3 converts not only disk letters, but also UNC paths. So \servershare will be converted to __servershare when archiving and restored to the original \servershare when extracting with -ep3.

2. Bugs fixed:
a) previous beta could fail to unpack self-extracting and multivolume CAB archives;
b) "Create a new folder" command always created new folders in the root archive folder;
c) "Remove redundant folders from extraction path" option did not work;
d) previous beta crashed when displaying archive comments with ANSI escape sequences;
e) switches -cl and -cu did not work.