help help help

[Peyote]

i build a simple comutication between a dos program and a vb program. the first to load is the dos program and it calls the vb program. my dos window is on a TOTALY FULL SCREEN SIZE.
what happenes it that when i move from the dos program to the vb program, it makes the dos window minimized (this is not important) , BUT, when i return from the vb program to the dos program it wont return to the dos's TOTALY FULL SCREEN mode (the one you can make by pressing Alt & Enter on a dos window)

i tried already:
------------------
ShowWindow hwnd, 3 (API function), but it will return a big dos screen (not totaly full screen)

then i tried:
---------------
SetWindowPos(hWnd, HWND_TOPMOST, 0, 0, 0, 0, wFlags)
but it only sets the focus to the minimized tab of the dos window on the toolbar, but not resizing it.

then i tried:
---------------
AppActivate "DosWindowTitle", but it work exaclty as setWindowPos. - it is only focusing the minimized tab on the toolbar not resizing it.

oh.... ANYONE????????