Pass parameters to program?

Haven't figured this one out, yet...
How can you (from Blitz3D) pass a parameter that can be read in the CommandLine$() on another Blitz3D program?

Haven't figured it out yet...

Thanks in advance!

execfile "my_exe.exe -parameter1"

I just knew it would be that obvious...

And can a blitz3D Proggy return anything to the caller?

like, in C++ you put in the main loop return result; and that's it!
but i don't get that in Blitz3D...

AFAIK no. Probably with a userlib extension.

only by writing it down in a file

Geez... well, thanks anyway!