Avast! Home Edition 4.8.1227

* improvements in some unpackers (WinExec, SFX CAB, LHARC, ZOO)
* check for critical system files is now performed even in the on-access scanner (as a prevention of false positives)
* command line scanner (ashCmd.exe): fixed displaying of directory count
* Windows Vista: during a scan of system drive, duplicate entries are now handled correctly (symlinks)
* Explorer extension process (ashQuick.exe) now ends immediately after aborting a scan
* fixed a bug in SMTP alerts (adding of random characters to the address)
* verification of digital signatures now fixed even for the on-access scanner (Windows Vista and Windows XP x64)
* fixed the setting to disable checking of infected files during on-demand scans
* Enhanced UI: it is no longer possible to delete a default task by using the Delete key
* solved a synchronization problem that could potentially lead even to a hang of an avast component (e.g. the Outlook plugin)
* Windows Vista SP1: solved an issue in the kernel driver aswSP.sys (problems during system shutdown)
* added a workaround to a compatibility problem with NComputing NCT
* Standard Shield: improved handling of exceptions
* improvements in the rootkit submission system
* mail scanner: fixes in IMAP handler (Thunderbird)