'ProcessId is a Public integer variable
    If ProcessId = 0 then
        ProcessId = Shell("""C:\Program Files\Internet
Explorer\IEXPLORE.EXE"" ""filename""", AppWinStyle.NormalFocus)
        AppActivate(ProcessId)
    Else
        AppActivate(ProcessId)
        SendKeys.Send("%(FC)") 'Send the window an Alt-F, Alt C to close it
    EndIf

A click of the application's button brings up IE as expected, but then while
a later click of this button executes the "Else" code properly, it doesn't
close the IE window. The calling program loses focus, but the IE window
doesn't seem to gain the focus in order for the SendKeys command to close
it. Its like the AppActivate command is only doing half the job.

What am I missing here?

Don Peters

The issue is probably a timing issue:  appactive is called correctly, but
it takes a while for the process to get focus.  Sendkeys is probably
sending the keys too early.  Try putting in a "sleep" command like this
System.Threading.Thread.Sleep(7000).    

Also, if yoy may want to check the source code:  in the sample you're not
resetting the ProcessID to zero in the Else.