PRB: Error 800a01ad When You Run a WebClass from a Terminal Server Client (298926)

MORE INFORMATION

The information in this article applies to all versions of Windows 2000 except Windows 2000 Professional, which does not support running Terminal Services.

When you log on to Windows 2000, you start a session on the server (for example, User-0 for example). When you log on through a Terminal Server client, you start another session (for example, User-1). Windows 2000 must differentiate between these two sessions. Even though you may be logged on under the same user name (User), these two sessions are running under two separate security contexts (User-0 and User-1). When you run the WebClass and its associated DLL on the server, they run under the User-0 context. When you run the WebClass and its associated DLL through Terminal Server, they run under the User-1 context.

When you run the DLL directly on the server first, the DLL is compiled and loaded into Microsoft Internet Information Server (IIS) under the correct User security context. As a result, any attempt to run through Terminal Server afterwards appears successful. However, if changes are made from the client, the DLL must be recompiled (physically run on the server again).

NOTE: This error is specific to running a Visual Basic WebClass through Terminal Server. However, you may encounter other errors when you run any Visual Basic component under a service.