Gacutil.exe allows you to install assemblies into the cache, remove them from the cache, and list the contents of the cache.
The syntax for adding an assembly using gacutil.exe is as follows:-
gacutil [options] [AssemblyName]
/l Used to list the assembly in GAC
/I Used to register the assembly to the GAC
/u Used to unregister or remove the assembly from the GAC