NOINT Virus Leaves 17 Files on MS-DOS 6.0 and 6.2 Disks

ID: q97704

The information in this article applies to:

Microsoft MS-DOS operating system versions 6.0, 6.2, 6.21, 6.22
Microsoft Office for Windows, versions 4.0, 4.2
Microsoft Office Setup for Windows, version 1.0
Microsoft Word for Windows, version 6.0a

SUMMARY

If your computer is infected with the NOINT virus and you try to install MS-DOS 6.x or an Microsoft Office 4.2 program, your 3.5-inch installation floppy disks are damaged if the write-protected notch is in the closed (not write-protected) position. The disks are left with 17 files on each disk and are unusable. When you try to install an Office 4.2 product, you receive the following error message:


   SETUP.EXE could not be found

MORE INFORMATION

The 3.5-inch MS-DOS and Microsoft Office disks have write-protected tabs that enable you to write to the disks. The 5.25-inch disks are permanently write protected.

If you were using MS-DOS disks, each infected disk may contain a file named "S<MSDOS 5.0."

The following table shows the correct number of files for Disk 1 of each product for the 3.5-inch disk sets.

Product Correct Number of Files

MS-DOS 6.0 63 MS-DOS 6.2 61 MS-DOS 6.21 60 Microsoft Office 60

The NOINT virus is a boot-sector virus that can result in damaged file linkage, changes to system run-time operation, and changes to the boot sector.

To obtain new installation disks, contact Microsoft Sales Information Center (MSIC) at 1-800-426-9400.

To remove the NOINT virus, us Microsoft Anti-Virus included with MS-DOS 6.0 and later, or use a third party program.

Additional query words: 6.22 6.20 6.00 no int MS-Office S MSDOS5.0 ACMSETUP.EXE 6.00a

Keywords :
Version : MS-DOS:6.0,6.2,6.21,6.22; WINDOWS:4.0,4.2,6.0a; :1.0
Platform : MS-DOS WINDOWS
Issue type :