Remote Registry Access

Hello to all,
Need help. Pls reply. Anybody now how I can Remotely Access Windows 98 and Xp registry without using a domain. U see, I wanted to create a server(win2000) which will control the desktop, toolbar, and programs the client(win98&xp) can access. The problem is that I don’t have domain, just using work group. what approach can I do. Somebody suggested SNMP or a trojan program. If any body knows how to do this, pls help.