Thanks for your answer.
I installed the setup on another computer with Win7 x64.
all works fine.
I think, it is a problem with my maschine.

tom

Hi, i want install TeeChartNET2012_4.1.2012.02280 under Win7 x64 i start the Setup with admin rights and then i see a blank window with "TeeChartNET2012_4.1.2012.02280" as windowtitle. nothing else. and now?????? on my Laptop with WinXP , the setup works fine. i have cancel the Setup at the "Interne...