Remote Desktop and Terminal Services

I have two programs I've written.

Both programs maintain a link to independent vendor servers...

Program 1 uses a DLL supplied by the server vendor.
Program 2 uses an ActiveX supplied by the server vendor.

I still run Win98 (not SE) OS on the client machine which is accessing the
servers.
..
QUESTION:

1) Since I am using a vendor supplied DLL and ActiveX have I given them
remote access to my system ?

2) If so, is there a way to prevent them from doing file manipulation,
screen capture, and screen scraping -- and if so, how?

3) How do I check my system for RemoteDesk TerminalServices or NetMeeting
for Security purposes. So far a scan of the registry for "Remote",
Terminal" has not yielded a valid hit?

Thanks
David


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