Fs2 comes currently in 3 versions, 2 are beta one is there standard "we know it works" version. Each version has there own Media_VP files specifically made for that version. Not to mention the 10+ launcher versions.
Hang on there. As one of the senior troubleshooters over on HLP, I have to correct this. Right now, there is ONE (and only ONE) version of FS2_Open that people who are not seriously into FS2_Open modding should use. That version is 3.6.10 FINAL.
There is ONE and only ONE Launcher that people should use, and that's the 5.5e one, which was released with 3.6.10 FINAL. http://www.hard-light.net/forums/index.php?topic=64520.0
There is ONE and ONLY ONE version of the mediavps that people should use, more precisely, the 3.6.10 Re-release ones with the patch associated with it.
LINK:5#Q&_^Q&Q#If you have the wrong combination the game will not work at all. All these files are fully contained inside your Freespace 2 install directory. Not one single file is placed or uses anything in system32.
This is mostly correct. Neither FS2 nor FS2_Open will do anything to your system32 directory.