snichols: SendKeys is a VB Script method to send keystokes to a desktop window. This is a very crude desktop integration techique, instead of using DDE or COM. A common problem with using send keys (a.k.a keyboard stuffing) is the user still has control over the desktop while the keys are being sent, and it is possible for the user to click on another window during the send keys transmission, thus causing the keys to be sent to the wrong screen! Tcl probably has a similar procedure call.