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Microsoft KB Archive/251141

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Knowledge Base

PRB: Visual J++ 6.0 Installation Error: Unable to Install Java Packages from...

Article ID: 251141

Article Last Modified on 8/15/2005


  • Microsoft Visual Studio 6.0 Enterprise Edition
  • Microsoft Visual Studio 6.0 Service Pack 1
  • Microsoft Visual J++ 6.0 Standard Edition

This article was previously published under Q251141


During installation of Visual J++ 6.0, you receive the following error:

Unable to install Java Packages from :WJ98\WSSTUDIO6.CAB

The specified path is invalid.


Unable to install Java Packages from D:WJ98\WFCFORMS.CAB

The specified path is invalid.


Package Install Failed to open zipfile D:WJ98\


The system .DLLs being installed are unable to register with the current version of Comcat.dll.


Replace the current version of Comcat.dll with the version from the Visual Studio product CD-ROM:

  1. Unregister Comcat.dll. To do so, click Start, then click Run, and type regsvr32 comcat.dll /u.
  2. Search your local hard drives for Comcat.dll.
  3. Rename Comcat.dll in you Windows\System folder as Comcat.123.
  4. Copy Comcat.dll from the CD-ROM into the Windows\System folder.
  5. Register Comcat.dll: Click Start, click Run, and type regsvr32 comcat.dll. Make sure the operation is successful.
  6. Search your local hard drives for Comcat.dll and verify that it is now the 22-KB version.
  7. Reboot the system.
  8. Install the software from the CD-ROM using Setup.exe.


For additional information, click the article number below to view the article in the Microsoft Knowledge Base:

192392 HOWTO: Troubleshoot Visual Studio 6.0 Setup

Additional query words: visualj

Keywords: kbprb KB251141