Run an external Command.
objShell : A WScript.Shell object
strCommand : The Command to be executed
(Optional) : Int value indicating the appearance of
the program's window.
Not all programs make use of this.
bWaitOnReturn : Wait for the command to complete before
continuing execution of the wsh script.
If bWaitOnReturn is set to TRUE, the Run method returns any error code returned by the application.
If bWaitOnReturn is not specified or FALSE, this method immediately returns to script execution rather than waiting on the process termination (and returns an error code of 0)
Specifying the bWaitOnReturn parameter allows you to run programs synchronously (one at a time).