"Out of Memory" Error After Updating MSAV Signature File

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Article ID: 127807 - View products that this article applies to.
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After you update the Microsoft Anti-Virus signature files, you receive the following error message when you press the F9 key while you are running MS-DOS Anti-Virus (MSAV.EXE):
Out of memory
When this error occurs, the computer may stop responding (hang).

Note that this problem occurs only with the MS-DOS Anti-Virus signature files. This problem does not occur with the Windows Anti-Virus (MWAV.EXE) signature files.


The Microsoft MS-DOS Anti-Virus signature file update (DOSAV.EXE) dated 3/18/95 and later corrects the "Out of Memory" error the article discusses. All information about the updated signature file for MS-DOS Anti-Virus is provided by Symantec/Central Point.


Updated signature files for the Microsoft Anti-Virus programs for MS-DOS and Windows are available from the Symantec/Central Point BBS or the Symantec/Central Point forum on CompuServe. The updated signature list for MS-DOS Anti-Virus is called DOSAV.EXE, dated 9/27/95. The updated signature list for Windows Anti-Virus is called WINAV.EXE, dated 8/31/95.

The Symantec/Central Point BBS number is (541) 984-5366.

To reach the Symantec/Central Point forum on CompuServe, type GO SYMDOS or SYMWIN at any CompuServe prompt.


Article ID: 127807 - Last Review: September 13, 2013 - Revision: 1.0
  • Microsoft MS-DOS 6.0 Standard Edition
  • Microsoft MS-DOS 6.2 Standard Edition
  • Microsoft MS-DOS 6.21 Standard Edition
  • Microsoft MS-DOS 6.22 Standard Edition
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