FTP Voyager Scheduler: Run External Program doesn't work

I'm trying to run and external program from within an action. The Program to Run: C:\Windows\notepad.exe

From what I see in the Task Log, it appears everything worked.

[13] Mon 09Sep13 12:49:49 - (Action: Open Notepad) - Running external program: C:\Windows\notepad.exe

[13] Mon 09Sep13 12:49:49 - (Action: Open Notepad) - Action successfully completed.

[12] Mon 09Sep13 12:49:49 - (Task: Open Notepad) - Execution successfully completed.

[05] Mon 09Sep13 12:49:53 - QUIT

Except nothing happened.

I am using Windows 7, 64-bit.

BTW, if I put in an invalid path (C:\Windowsx\notepad.exe), the Task Log reports

[12] Mon 09Sep13 13:20:50 - (Task: Open Notepad) - Execution failed (Last Error Message: (0x2) The system cannot find the file specified.).

So it appears finding notepad.exe isn't the issue.