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- From: mcafee@netcom.com (McAfee Associates)
- Newsgroups: comp.virus
- Subject: Re: Dangerous bug in CHKDSK that comes with MS-DOS 5.0 (PC) (fwd)
- Message-ID: <0009.9212141513.AA07337@barnabas.cert.org>
- Date: 10 Dec 92 07:48:08 GMT
- Sender: virus-l@lehigh.edu
- Lines: 45
- Approved: news@netnews.cc.lehigh.edu
-
- Hi Mike,
-
- mramey@u.washington.edu (Mike Ramey) writes:
- >How can you tell if you have MS-DOS version 5.00a or not ?
-
- [...your comments on calling Microsoft and Vesselin's re-posting of
- a message about the CHKDSK problem deleted for brevity...]
-
- Another way to check the revision of the DOS version is to make use of
- the undocumented /R switch in the VER command. This returns the
- version and revision of DOS loaded as well as whether or not DOS is
- loaded high.
-
- For example, shelling out to DOS and typing "VER /R" reveals:
-
- D:\PCPLUS> VER /R
-
- The Operating System/2 Version is 2.00
- Revision 6.427
- DOS is not in HMA
-
- Heh heh.. Oops. Looks like that is also supported by OS/2's DOS emulator.
- Let me take another try at that:
-
- D:\PCPLUS> VER /R
-
- MS-DOS Version 5.00
- Revision A
- DOS is in low memory
-
- There we go. As you can see, MS-DOS Version 5.00 Revision A is present.
-
- Regards,
-
- Aryeh Goretsky
- Technical Support
-
- PS: I received your postal mail on Monday. Thanks.
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