Re: invoking non-GUI application in the target machine
You can use SYS_EXECUTE or a MainWin trick. There are lots and lots of posts about this. SYS_EXECUTE will hang if the thing you call doesn't run to completion, so you can use a shortcut to get around the issue. The MainWin trick works nicely for many apps (and doesn't require that they run to completion), but it also hung for me with some types of apps... I don't know why.
Go to the advanced search and search only the silktest forum for SYS_EXECUTE.