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Cannot Manually Extract Files from Cabinet Files


Symptoms

When you use the Extract tool to manually extract a file from an Internet Explorer 4.0 cabinet file, you may receive the following error message:
Cabinet <cabinet>.cab
Extracting <filename>
ERROR: Unknown compression type in cabinet file <cabinet>.cab

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Cause

This error message can occur if you are not using the version of the Extract tool (Extract.exe) included with Internet Explorer 4.0.

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Resolution

To resolve this issue, extract the updated Extract.exe file from the Setupw95.cab cabinet file to the Windows\Command folder, and then try to extract the file again.

NOTE: The Setupw95.cab cabinet file uses an earlier compression scheme and works with the older Extract tool.

To extract the updated Extract.exe file, follow these steps:

NOTE: If you are manually extracting a file from an Internet Explorer 5 cabinet file and encounter this problem, the updated EXTRACT.EXE can be found in the GSETUP95.CAB. For Internet Explorer 5, the following command is used to extract the new file:

extract gsetup95.cab extract.exe /l c:\windows\command

  1. Click Start, point to Programs, and then click MS-DOS Prompt.
  2. Type the following command at a command prompt, and then press the ENTER key:
    cd\
  3. Type the following command at a command prompt, and then press the ENTER key:
    cd\intern~1.0se
    NOTE: This assumes that the Internet Explorer 4.0 Setup folder is in the root of the C drive. If you specified a different location for the Internet Explorer 4.0 Setup folder during Setup, change to that location before you continue with step 4.
  4. Type the following command at a command prompt, and then press the ENTER key:
    extract setupw95.cab extract.exe /l c:\windows\command
When you are prompted to overwrite the Extract.exe file, press the Y key.

For additional information about using the Extract tool, see the following article in the Microsoft Knowledge Base:
129605 How to Extract Original Compressed Windows Files

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Article Info
Article ID : 171241
Revision : 4
Created on : 1/1/0001
Published on : 1/1/0001
Exists online : False
Views : 266