muahaha i got it running so... in my desperate need to get it running i put the .dll like in every folder i could imagine to be needed to run i got into log's after reading your post... cause i had it in the folder you said (should have red log files earlier...) i guess i put it into too many folders and it kept itself from running. in log files it said many times that it did load it. ksp/gamedata/forscience works as ksp/plugins and a few combinations like ksp/plugins/forscience.... now i deleted every forscience.dll exept one and the window shows up as it should thx for answer and your plugin. cheers