>I have VFP50a build 415.
>I read about setup.stf and administrator rights earlier in KB (Q163785 and other), but it don't help.
>With administrator rights - I try install VFP50 on NT workstation, add support pack, recompile my application. My.EXE works only under running VFP.EXE.
>I try create setup, run setup .. same thing. (My.EXE work fine on any other PC with Win95, on which was previously installed another VFP application.)
>I know, it will be mine stupid bug, but what?

The only thing I can think of is that the runtime components were not put into your setup Wizard install. When you ran Setup Wizard to create your install, did you tell it to include the VFP runtime? In the second screen (Step 2 - Specify Components), you need to check the checkbox for Visual FoxPro runtime to have the runtime files included in the setup.