So there is a registerfp_1_1.zip that I used to get Firefox Portable into my Set Default Programs list and then I was able to associate it with the protocols properly. So all is fine with Firefox Portable now. So Why is there not a registerfp_1_1.zip for Thunderbird Portable like a registetbp_1_1.zip so I can get Tbird on the list and associated with the protocols properly.