>>
>>No. There is no project. That's the all code:)
>>-Write in notepad.exe
>>-Go to VS2005 command prompt
>>csc mytest.cs
>>myTest.exe
>>
>>It works. Now try ShellExecuting from VFP. It doesn't and return code is 5 (access denied).
>
>I foung Command Window. Is it the same as Command Prompt?
>
>But when I type the CSC Mytest.cs I get message "command css is not valid".

No, regular one doesn't have necessary environment variables. See my other reply.
Cetin