INSTALLING FSUIPC6 on my NEW PC

[GiankMustang]

Hello.
I can't install FSUIPC6 on my NEW PC.
I uninstalled FSUIPC6 Online from my OLD PC.
I go into SimMarket to re-download it, to my folder.
After the download is complete, it says:
"FSUIPC DEMO Download is OK."
Why does it say "DEMO"?
After registration, it says "details not valid."
But the details I enter are the same as the registration email I received from SimMarket.
Can you help me?
Thank you.

[John Dowson]

23 hours ago, GiankMustang said:

I go into SimMarket to re-download it, to my folder.
After the download is complete, it says:
"FSUIPC DEMO Download is OK."
Why does it say "DEMO"?

I have no idea. There is only one version of FSUIPC, and it can either be used with or without a license. You can also download from https://fsuipc.com/.

23 hours ago, GiankMustang said:

After registration, it says "details not valid."
But the details I enter are the same as the registration email I received from SimMarket.

If your key is not validating, it is most likely because you do not have the required VC++ redistributables installed. Please download and install the combined (ie. for 2015, 2017, 2019 and 2022) VC++ redistibutables, both x86 and x64, from https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170

John