The Virus Chest can be thought of as a folder on your disk drive, having special properties that make it a safe, isolated place suitable for storing certain files. You can work with the files in the Chest, though with some security restrictions.
The main properties of the Virus Chest are complete isolation from the rest of the operating system. No outside process, such as a virus, may access the files inside, and the fact that the files inside the Chest may not be run (executable), there is no danger in storing viruses there.
avast! antivirus features outstanding integration into your system. A scan can be started directly from Windows Explorer, by clicking a folder or a file with your right mouse button and selecting the corresponding choice from the menu.
A special screen-saver is also provided, that, when running, performs virus scanning. avast! antivirus works together with your favorite screen-saver, so you don't have to change your personal settings to use it.
A new option with this release is the boot-time scan (Windows NT/2000/XP/Vista 32bit only). This important feature allows a user to instigate scanning before a virus is activated, in the case that a virus is suspected to be active on your computer already.
Integrated avast! Virus Cleaner
Since version 4.1, avast! includes the Virus Cleaner, a tool designed for a complete removal of most common infections from already-infected computers. So now is avast! capable even to reliably heal (not only detect) the most common malware.
The number of viruses/worms supported by the Virus Cleaner is constantly growing. For the most up-to-date information we suggest to visit Cleaner's own page (for emergency purposes we also offer the Virus Cleaner as a standalone product, capable of running without installed avast).
Support for 64-bit Windows
avast! Home/Professional now fully supports the 64-bit Windows platform. ALWIL Software is anticipating massive take-up of this platform, as Windows XP 64-Bit Edition will support up to 32 GB of RAM and 16 TB of virtual memory, enabling applications to run faster when working with large data sets. Applications can preload substantially more data into virtual memory, allowing rapid access by the 64-bit extensions of the processor. This reduces the time for loading data into virtual memory or seeking, reading, and writing to data storage devices, making applications run faster and more efficiently.
Regular (32-bit) antivirus applications are unable to operate correctly on the 64-bit Windows platform because they rely on 32-bit kernel-mode drivers. The new avast! uses native 64-bit drivers, delivering the same level of protection as in the 32-bit Windows environments. The installation package is the same for 32-bit and 64-bit versions - the setup program automatically detects the operating system it is running on, and installs all necessary files. You may find more information on avast! Antivirus and Windows x64 Edition page.