unable to attach the process

Hi

I have a question when debugging dotnet code when attaching vb6.exe code to
this process.

i get an error like :

unable to attach the process. there is no managed code running in the
process. INorder to attach a process with the .NET Debugger, managed code
must be running in the process before attaching.

what i did is : went to Process-->attach--added vb6.exe process.

when i click on the native check box i dod not get the error.

but when i dont click on the native or scripts check box i get the above
error.

why is this so ?

Thanks
Senthil

SenthilVel