Scrplus does everything for you: the first 'General' page of a Plus! style configratuion dialog, MPR, hot-corners, the System Agent, password delays, subclassing property sheets and lots of undocumented internal Windows API. To write a complete saver from scratch would take over 2000 lines of code; to write it with Scrplus will take less than 20.
You should first have installed the trial version of Scrplus.
Use the secure form or the insecure to make the purchase on-line.