I have the unregistered version of fsuipc. ive read that you dont need the registered version for most add-ons. trike-immersion and precipitfx seems to work fine, but the 737 immersion does not. i dont see any change in lighting, and no wing/engine condensation either. does the 737 immersion require the registered version of fsuipc or is there something else that might be the problem? 

Thanks in advance.

 

-Rolf

Have you gone through the FAQs?  It looks like FSUIPC needs to be installed but no mention of the payware version.

 

Do you have your scenery sliders where they should be?  Show advanced animations checked?

 

https://fsfxpackages.com/en/support/

Yep, scenery slider is set to where it should be