The Global Assembly Cache (GAC) is a global assembly storage location. You can store assemblies in the GAC and re-use them in your application.

We personally discourage the use of GAC, where possible, since it goes against transparency, XCopy deployment, etc. Still, if you do need to use GAC on your machine, just locate the Trirand.Web.dll and manually copy the file to the Windows GAC folder (always located at C:\WINDOWS\assembly, or c:\winnt\assembly, depending on the version of Windows you are using).