Unable to register the DLL/OCX: RegSvr32 failed with exit code 0xC0000005 with Inno Setup 5.2.3

Posted by robodale on Stack Overflow See other posts from Stack Overflow or by robodale
Published on 2009-08-16T15:30:47Z Indexed on 2010/04/28 23:57 UTC
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I am trying to register a COM DLL using Inno Setup in a setup package I created. During test installations on Vista, I get this error:

Unable to register the DLL/OCX: RegSvr32 failed with exit code 0xC0000005

I click "Ignore" and my application appears to install, but I have to then open a command prompt (as an administrator) and then regsvr32 to install the COM DLL. Is there any way to do this automatically in Inno Setup?

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