Microsoft KB Archive/329862

= Cannot open Add/Remove Programs in Windows 2000 =

Article ID: 329862

Article Last Modified on 2/28/2007

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APPLIES TO


 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Professional Edition

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This article was previously published under Q329862



SYMPTOMS
When you try to open the Add/Remove Programs utility in Microsoft Windows 2000, it does not open, and you do not receive an error message, or you receive the following error message:

Error: Error loading type library/DLL

When you try to re-register any .dll file, you may receive the following error message:

Error: 0x80029C4A (TYPE_E_CANTLOADLIBRARY): Error loading type library/DLL

In Windows Task Manager, the process for the Add/Remove Programs utility (Mshta.exe) is listed among the currently running processes.



CAUSE
This issue may occur if a Windows system file is missing or corrupted.



RESOLUTION
To resolve this issue, use the Windows System File Checker tool (Sfc.exe) to clear the file cache and to replace protected system files with their correct versions. To do this, follow these steps:
 * 1) Click Start, and then click Run.
 * 2) In the Open box, type cmd, and then press ENTER.
 * 3) In the Command window, type sfc /purgecache, and then press ENTER.
 * 4) In the Command window, type sfc /scannow, and then press ENTER.

A Windows File Protection window appears, displaying the progress of the file system scan.

Note You may be prompted for your Windows 2000 CD-ROM. Insert the CD-ROM into the CD-ROM drive or DVD-ROM drive, and then click Retry.
 * 1) After the scan has completed, remove the Windows 2000 CD-ROM from the disc drive, and then restart your computer.

If this procedure does not resolve this issue, perform an in-place upgrade. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

292175 How to perform an in-place upgrade of Windows 2000



MORE INFORMATION
For more information, click the following article number to view the article in the Microsoft Knowledge Base:

265829 Add\Remove Programs tool may not work after installing Internet Explorer 5.5 or Internet Explorer 6 on Windows 2000

Keywords: kbprb KB329862

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