Controlsend

[this-is-me]

It looks like the whole application hooks the keyboard interrupts in which case the commands would HAVE to be sent using send() proper. You can try winactivate before send to make sure the command is sent to the right window.

[sl_alagappan]

Problem got sorted out with below modified code from Ramco Systems.

cAutoit.WinActivate strRamcoARWindowName, strRamcoARWindowText
intResult = cAutoit.ControlSend(strRamcoARWindowName, strRamcoARWindowText, "", "{ALT}")
intResult = cAutoit.WinMenuSelectItem(strRamcoARWindowName, strRamcoARWindowText, "&Transactions", "&Receipts...")

Thanks to AutoiT Team & Ramco Systems!...