In my QTP code i was using

SwfWindow("Workspace").Type micAltDwn + micF4

SwfWindow("Workspace").Type micAltDwn +   "f"
SwfWindow("Workspace").Type micAltDwn +  "o"

But after i execute these lines, everything hangs...my QTP hangs, my application doesnot open.I have to restart to open the app.

I need to type "ALT+F4" to close the app.

I need to type "ALT+H" to get the keyboard controls of my ribbon.

I need to type escape to get the control out of my ribbon area.

So suggest me the best way of using these keys

Thanks 

Rajesh