- Microsoft Anti-Virus
Microsoft Anti-Virus (MSAV) was an antivirus program introduced by
Microsoftfor its MS-DOS operating system. The program first appeared in MS-DOS version 6.0 and last appeared in version 6.22. The first version of the antivirus program was quite rudimentary, had no update facility (though a single update became available), and could only scan for about 1,000 viruses. Microsoft Anti-Virus for Windows (MWAV), included as part of the package, could be run under Windows 3.x.
Microsoft Anti-Virus was supplied by
Central Point SoftwareInc. (later acquired by Symantecin 1994and integrated into Symantec's Norton AntiVirusproduct) and was essentially a stripped down version of the Central Point Anti-Virus(CPAV) product which, in turn, Central Point Software Inc., had licensed from Carmel Software Engineeringin Haifa, Israel. Carmel Software sold the product as Turbo Anti-Virusboth domestically and abroad.
Microsoft Anti-Virus for Windows was also provided by Central Point Software. This product became noted as determining that the upgrade program of
Windows 95was detected as a computer virus, something which was embarrassing to Microsoft. [http://www.computerhope.com/msavhlp.htm]
Both the MS-DOS and Windows versions of the latest product had common features; the "Detect and Clean" strategy of Microsoft Anti-Virus could scan for and detect 1,234 distinct viruses. Other features included the detection of
boot sectorand trojan horse-type viruses which was the typical virus problem at the time.
The program also had an anti-stealth and
checksumfeature that could be used to detect any changes in normal files. This technology was intended to make up for the unavailability of regular update packages. Only one virus update was introduced since the original releases [http://support.microsoft.com/kb/127807] bringing the total protection to 2,371 viruses in 1996.
Windows XP and Vista
With the acquisition of GIANT Company Software and the release of
Windows Defender(formerly Microsoft AntiSpyware), and the acquisition of RAV Antivirusfrom GeCAD Software, Microsoft has once again entered the antivirus market with:
Windows Live OneCare(subscription program) for Windows XP and above
Windows Live OneCare Safety Scanner, formerly "Windows Live Safety Center" (free web service) for Windows 2000 and above
Windows Defender(free program) for XP, Server 2003, and is built into Windows Vista.
* [http://bill.gatos.googlepages.com/virus.html List of virus detected by MSAV]
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