How to unregister a dll file in Windows XP or Vista?

A DLL file, also known as Dynamic Link Library, is a file containing different functions that are mostly used across multiple applications. In order to unregister a dll file to troubleshoot a problem in Windows XP or Vista, follow these instructions:

1. OPEN COMMAND PROMPT

• From START menu select RUN option.

• Type “cmd” (without the quotation marks) . This calls up the Windows Command Prompt.
  
  

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  • Press ENTER.
  • After you press ENTER, the confirmation window stating “DllUnregisterServer in (file name) succeeded” will be displayed
Click OK. (Where is RUN in Windows Vista)

2. NAVIGATE TO THE EXACT LOCATION OF DLL:

Type “regsvr32 /u filename.dll” where “filename” is the name of the DLL that you are trying to unregister




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