HELP!!!!

[visual fzz]

I try to simulate artificial keystroke from the code in a prompt window:

Dim AppId as variant

AppId = Shell("c:\winnt\system32\format.com a: /Q", vbNormalNoFocus)
AppActivate AppId
DoEvents

'Simulate the first enter key stroke to confirm
SendKeys "{enter}"

DoEvents

'Simulate the volume name
SendKeys "Vol_12"
SendKeys "{enter}"
doevents

'Simulate the answer at the question "Do you want to format another disk?"
SendKeys "n"
SendKeys "{enter}"

DoEvents





This is the last part that doesn't work!!!
I can't write on the window neither the "n" nor "{enter}"

WHY????

Fzz