I had the 737 registered installed on FS2002. Today I decided to clean my PC and I removed completely Fly!2 and FS2002 to make a clean place for FS2004.I have installed a registered FSUIPC 3.0 and it works.I installed the whole 737 on the FS2004. Files are there.When I launch the program, with default plane, the program runs ok. When I select the PMDG 737, I get a message that the program is not registered. I enter the long number (key) I got with my mail from PMDG, but the number does not match.I have saved a folder within FS2002/Modules and a 5 series of number before cleaning. Where do I put this? Would this help?Another funny thing is that my reference code from PMDG does not match the one in the registering menu from PMDG.All I get is the panel with green windows.Thanks for your help.With best regardsRakhamPIV 2.53 Ghz 1536 DDR ATI Radeon 9700 Pro WinXP ProYoke & Pedals CH Products

Rakham,Not having FS2K4 I am not an expert but here's my best guess. Somewhere in the FS2004 folder should be a new folder similar to the one you saved (the one with the number string). You will need to replace it with the saved one and it SHOULD then accept your original license number. If this doesn't work drop me a note a [email protected] or you can generate a code at the automated registration site listed above and that should get you going again. Paul GollnickTechnical Operations/Customer Operational SupportPrecision Manuals Development Group[www.precisionmanuals.com]

Bingo!:-)Thanks so much for your help. I did an auto register again and here we are with the best plane ever made for simulation.Best regardsRakhamPIV 2.53 Ghz 1536 DDR ATI Radeon 9700 Pro WinXP ProYoke & Pedals CH Products