Greetings, I recently upgraded my PC from Win98Se to Win2K (+SP2). Under Win98SE, TDS-3 ran with no problems. Under Win2K, we have real users and permissions (a good thing). Logged in as Administrator it runs fine with Execution Protection installed. Logged in as a PowerUser it mostly runs fine, claims to install Execution Protection, but also throws an error window - seems something is not being moved or copied due to permissions. Initially I tried (temporarily) giving PowerUsers full control over my TDS-3 directory (and lower) and the \WINNT\inf directory (and lower) - same problem. I assume then that I need to instead run TDS-3 as a Service. I know how to do this (using Instsrv.exe & Srvany.exe etc) but wonder if anybody has already done this or has any advice on this ? BTW I assume TDS-4 will run this way anyway as it will be Win2L-savvy ? Regards. Pitbull.