Unregister DLL using regsvr32

Question

This is driving me nuts.

I registered a DLL (COM) using

regsvr32 blabla.dll

In the meantime, I deleted this DLL manualy from disk.

How can I unregister this dll? I know the CLSID.

Edit:

Apparently I need to delete this from the registry.

What should I delete in the registry?

Emerick Rogul · Accepted Answer · 2009-12-28T23:21:24.043

16

The unregistration code lives in the DLL, unfortunately, so regsvr32 /u blabla.dll won't work; you'll need to manually delete the DLL's information from the Windows registry using regedit. I believe that the registration information is typically located in HKEY_CLASSES_ROOT\CLSID\{YOUR-CLSID}.

edited Dec 28 '09 at 23:21

answered Nov 28 '09 at 21:04

Emerick Rogul

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score 2 · Answer 2 · answered Apr 08 '19 at 22:46

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Another way of fixing this is to put the dll back and unregister it. Then you can delete it.

We often have this at customers places with midas.dll where the registered path does not have the dll.

answered Apr 08 '19 at 22:46

Rohit Gupta

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score 1 · Answer 3 · answered Nov 18 '21 at 22:25

You unregister a dll the same way you registered it, with the addition of the /u (uninstall) flag.

regsvr32 /u blabla.dll

Of course if you don't have the dll anymore this won't work, but if you still have a copy or can get one this is easier than manually editing the registry.

score 0 · Answer 4 · answered Nov 28 '09 at 21:32

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You may need to delete the prog.id either located in HKEY_CLASSES_ROOT too.

answered Nov 28 '09 at 21:32

Emmanuel Caradec

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Unregister DLL using regsvr32

4 Answers4