Windows – How to uninstall DLL from assembly folder? Permission denied when uninstalling DLL from GAC

This behavior is a byproduct of the UAC being enabled. The UAC basically filters away your Adminisrator access to protect you from yourself.

You can either choose to disable it, or you can choose to add yourself to another group, and use another group when you are setting up filesystem/share access.

The only way the DLL will work without registering it on the server is if it's managed code for .NET.

You will see wrapper DLL's for ASP.NET but even they need to have the core DLL registered on the server.

Additionally, since you're using Classic ASP, dropping something into the /bin folder wouldn't help, even if it was fully managed.

So, unfortunately your only option, apart from another hosting platform that allows registering DLLs, is to move to a fully management component and calling it from ASP.NET.