Unable to uninstall the assembly from GAC.

Santosh Aher

12y2.4k.NET

I have encountered an issue while upgrading an application from .Net Framework 3.5 to latest version with .NET Framework 4.5.1. I came into a situation, where one application is using a logger assembly built with .NET framework 3.5, another application(built on 4.5.1) tries to uninstall same logger assembly which is being used by previous application, but it couldn’t proceed. As it keeps on searching the logger assembly in 4.0 GAC and takes significantly lot more time.

However above scenario works smoothly where older and newer applications are built on .NET Framework 3.5 only.

Note: Assembly is getting uninstalled by windows installer not by GACUTIL utility.

4 Replies

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Santosh Aher12y ago
Thanks Ajay, We are uninstalling assemblly by windows installer not by GACUTIL
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Ajay Yadav12y ago
gacutil /u AssemblyName (Fully Qualified Name of Assembly)
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Santosh Aher12y ago
Yes , Windows installer do it automatically, I haven't mentioned the path while creating the package.
Only strange thing I don't understand is that its working completely fine with 3.5. but not with 4.5.1
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Sahil Sharma12y ago
If you're removing an assembly make sure the path is correct. It may be noted that shared assemblies developed in .NET Framework 2.0 - 3.5 are stored in C:\Windows\Assembly;
whereas assemblies developed in 4.0 or higher framework are stored in C:\Windows\Microsoft.NET\assembly

This video might be helpful to you: http://www.youtube.com/watch?v=FYmRrEYyhCM
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