"File Cannot be Decompressed" with Helix Multimedia Cloaking

• Microsoft Office for Windows, versions 4.2c, 4.3c
• Microsoft Excel for Windows, version 5.0c
• Microsoft Word for Windows, version 6.0c
• Microsoft PowerPoint for Windows, version 4.0c

SYMPTOMS

When you run the Setup program for one of the applications listed above, you may receive the following error message when you insert Disk 2

   The compressed file a:\<FILE2.CAB> cannot be decompressed and may be
   corrupted.

CAUSE

This problem occurs when you are using DMF Setup disks if Helix Multimedia Cloaking is running during the installation process.

WORKAROUND

To work around this problem, temporarily disable the Multimedia Cloaking option (this option is installed by Netroom) in the AUTOEXEC.BAT file by doing the following:

1. Make a backup copy of your AUTOEXEC.BAT file.

2. In the MS-DOS Editor or another text editor, open the AUTOEXEC.BAT file.

3. In the AUTOEXEC.BAT file, locate the line that appears similar to the following:

         C:\NETROOM\XLOAD.EXE -SD001 -M31488 C: \MMCLK\CACHECLK.EXE /K=3072
         /WK=3072 /H=2048 /WB=1
   

         -or-
   

         C:\NETROOM\XLOAD.EXE -SD001 -M47760 C: \MMCLK\MSCDEX.EXE
         /D:MSCD001 /L:D /M:15
   

4. Type "rem" (without the quotation marks) preceding the line and then restart you computer. The lines should appear similar to the following:

         REM C:\NETROOM\XLOAD.EXE -SD001 -M31488 C: \MMCLK\CACHECLK.EXE
         /K=3072 /WK=3072 /H=2048 /WB=1
   

         -or-
   

         REM C:\NETROOM\XLOAD.EXE -SD001 -M47760 C: \MMCLK\MSCDEX.EXE
         /D:MSCD001 /L:D /M:15
   

For more information about conflicts between Helix Multimedia Cloaking and Setup, see the following articles in the Microsoft Knowledge Base:

   ARTICLE-ID: Q124970
   TITLE     : Troubleshooting DMF Issues

   ARTICLE-ID: Q122654
   TITLE     : Setup Repeatedly Prompts for Disk 2 with Netroom Installed