UrlConf helps you to add or change URL protocol handlers. It has canned receipes for connecting ssh:-URLs to PuTTY, rdp:-links to mstsc.exe and smb:-URLs to Windows Explorer.
This is the first version released on CodePlex. It has all the features I need; to do: polish and add more easy URL handler receipes.
Prerequisite is .NET 1.1, source and binaries are released under an MIT style license.