I just downloaded and installed the latest FSUIPC for P3D. Got it install and manage to get it working but when I go to add-ons and FSUIPC settings window, I have no options to really configure anything. I thought there was a demo/trial mode where you are able to at least use it but with limited options and features?

 

 

I thought there was a demo/trial mode where you are able to at least use it but with limited options and features?

 

You thought wrong.  ^_^ To enable the options, you have to buy the add-on. 

Then what is the purpose of allowing us to download it in the first place if there's no trial or demo mode?

If I understand correctly, Some addons work with FSUIPC even if you do not have options to configure it? I could be wrong.

Many are using only the limited features provided by the unregistered version.  But to get the full use out of FSUIPC, you've got to purchase it.

If you take the time to read the extensive documentation Pete has provided, you will learn what features are supported in the "free version" (there is no "demo version"), and what are only available with the "registered version."

 

On the whole, many (most?) people use only the features provided in the "free version," since many of their payware aircraft developers have paid Pete directly to "unlock" the specific features their products require.