[Problem with the registration key]

That worked.  Thank you so much.  I really appreciate all the work you guys put into this project.

[Problem with the registration key]

10 hours ago, John Dowson said:

Can you run FSUIPC7 by double-clicking the FSUIPC7.exe window? Or do you get an error?

Just to confirm that you mean FSUIPC6.exe?  If so, no, I can not find that application installed.  Only Install_FSUIPC6.exe and UninstallFSUIPC6.exe.  These I can run by double clicking on them.  And by following the instructions in that window to install eventually takes me to the registration screen where I enter the information, press "Register", and get the pop up error message.

The only FSUICP window I can access is through the P3D program's Add-on menu which gives all the information and logging options in the unregistered version.

10 hours ago, John Dowson said:

If so, it is probably due to your VC++ redistributables being corrupt. You need to uninstall any of the VC++ redistributables from 2015, 2017 & 2018, then re-install the combined package (both x64 an x86) from https://support.microsoft.com/en-in/help/2977003/the-latest-supported-visual-c-downloads

I uninstalled the VC++ 2015, and reinstalled x64 and x86 packages as suggested.  Re-ran Install_FSUIPC6.exe, entered the information, and still received the same pop up registration details not valid message.

[Problem with the registration key]

Yes, after clicking on the Register button, a pop up window appeared with the message "Registration details for FSUIPC6 not valid - please re-enter and try again" along with the recommendation to copy and paste to ensure that the information entered is exactly as what was provided in the confirmation email.

[Problem with the registration key]

Hello,

Last night (Mar 3rd local) I purchased FSUIPC6 to use with P3Dv4.5 from simMarket, order #2668065.  After re running the installation and entering the registration information, it continues to give me an error "Registration details for FSUIPC6 not valid - please re-enter and try again."

- installed FSUIPC6 v6.0.12, downloaded from the website and from the simMarket email.

- FSUIPC was installed in the Documents/Prepar3D v4 Add-ons folder.  Other locations were tried as well but still yielded the same results.  Complete uninstall was done from each location.

- All 3 fields (name, email and key) were entered multiple times by both typing manually and by copy-and-pasting to ensure they were correct as provided. (WideFS Key was left blank as this was not purchased).

- FSUIPC appears to be running fine unregistered in Prepar3D as it shows in the add-on menu and its window opens when selected.

- The provided documentation mentioned checking the computer system's date and time as this was said to cause problems.  As the purchase was made late at night (just before midnight) I didn't know if that could have an effect.  In the end the system time checks ok.  

Would there be anything else I could try to get it working. 

Thanks.