Open “Run” and type in “cmd” to open Command Prompt windows. After that, follow the following syntax to make copy your GAC Assembly (.dll).
Syntax
copy C:\windows\assembly\GAC_MSIL\AssemblyName\Version__PublickKeyToken\AssemblyName.dll TargetLocation
Example
copy C:\windows\assembly\GAC_MSIL\system.directoryservices.accountmanagement\3.5.0.0__b77a5c561934e089\system.directoryservices.accountmanagement.dll c:\
Credit goes to Richard Yu