More a WORK-AROUND than a FIX. If you are unable to register your PMDG 727NGX, , (or any other addon, or even FSX itself), you might like to try this, and report back if it allows YOU to register the 737. Re-Boot Computer.Create a NEW account, and give that new account ADMINISTRATOR Rights.Re-Boot and log into that new Administrator account.Run FSX,( as admin for that new account) and see if the registration will now work. If it does, or if it does not, you can always re-login back with your original account, and proceed to Delete that temporary Admin account you previously created. (you may not want a multitude of admin account floating around on your PC.. security risk etc etc ) This technique works for quite a few other product's registration issues, including the registration of FSX itself. You might be lucky - might help a few with 737 registration issues. .

So much work, when it should work straight away. All their other software works.. not sure why this doesn't.

So much work, when it should work straight away. All their other software works.. not sure why this doesn't.

You have hit the nail on the head !! Your "not sure why this doesn't." .. you are not alone !!!

Sould not have to work Around to fix the Rego It should be sorted by now by PMDG its been out 1 month in 2 days

Sould not have to work Around to fix the Rego It should be sorted by now by PMDG its been out 1 month in 2 days

LOL "You are preaching to the Choir" -- you need go ask the Vatican. not this mere peon in the congregation. You are probably asking for a Miracle - remember, the world was not build in a day.