>>>>>>After compiling mytest.cs without an error, I run mytest.exe but nothing happens. Am supposed to see a window with a message? What am I doing wrong?
>>>>>
>>>>>No it's working there from command window:) Check temp folder. It should have created test.txt with "Hello from C#" in it.
>>>>>Problem it fails if called from VFP via ShellExecute().
>>>>>Cetin
>>>>
>>>>yes, you are correct. the file test.txt has been successfully created. Now, after I figure out how to run this .exe in ShellExecute in VFP, I will let you know what happens here.
>>>
>>>OK. Here is test code (assuming exe is c:\temp\test.exe):
>>>
>>>

>>>DECLARE INTEGER ShellExecute IN shell32.dll ;
>>> INTEGER hwnd, ;
>>> STRING operation, ;
>>> STRING file, ;
>>> STRING params, ;
>>> STRING workdir, ;
>>> INTEGER showcmd
>>>
>>>? ShellExecute(0,"Open","c:\temp\test.exe",0,0,1)
>>>

Hope you get something over 32 as return value.
>>>Cetin
>>
>>I just sent you a message. And my code looks almost exactly as yours. And it works on my PC.
>>
>>Could it be that your PC is tired? <g> (given the late hour of your time)
>
>Might be but it's not on this PC. On this one I don't have 2.0 yet and no VFP.
>Cetin

The return value I get from SH is 42, now I know what you mean by 32.