Your mess is called Windows OS (tm). As long as you use such proprietary expensive as well as underdeveloped crap you will continue to live in the "My documents" and "DLL" hell of those MS wisecracks.
But there is a solution: "Windows Live"
You will only type your letters and documents online, store it online on some cheap chinese server, and also pay for every second typing and storing it there. The good thing is you will have no PC at home anymore, and screw up the server's directories somewher else
Greetings,
Catfish