cant run app on dedicated server

What do you understand by dedicated server? A root server hosted somewhere on the internet? What kind of build have you created? Win, Mac, web, ...?

Have you checked the logfiles?

Ask specific and detailed questions. Your question can't be answered without a lot discussion...

Thanks for getting back, sorry for the lack of details, wasnt sure which questions too ask, so this helps

I own a dedicated server that i can connect to via Remote Desktop, its a windows 2008 R2 Server and i created a windows build and also a windows 64 bit build with unity

Neither build runs on the server, when i try to run it, it just crashes right away, even if the application is an empty application, the odd thing is i have an old build that does run... the only thing i can think so far that is different is i updated my version of unity (old build was with the current unity for april this year, current build is with the latest current version of unity??

also, i have looked at the logs, but cant seem to make sense... what location would the log be that holds the crash information?

As you can read on the log files page: For standalone builds on windows it's located in the data directory of your build which is right next to your exe.

 EXECNAME_Data\output_log.txt

Well it is possible that the old build which propably uses an older player runs while the current player have some problems on your server.

Make sure you have copied the data folder since it will actually contain your game / application. The exe file is just the standalone player. It's the same for every build (of course every Unity version has it's own version).

BTW: when you say it crashed, what exactly does that mean? Do you get any message? Does it just die silently? Does it freeze? BSOD?