Today I found this blog to show you how to get dll from GAC
you can run
Dot net have a dll file Shfusion.dll which is a Assembly Cache Viewer. It is located in the following path.


1. uninstall the dll using the following command in the run dialog box.

regsvr32 -u C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\shfusion.dll

1. Now type assembly in the Run dialog box.
2. Now you will see the folder view of the GAC. copy the dll you want.

To get back to the previous state of view register the Shfusion dll using the following command

regsvr32 C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\shfusion.dll