>>It's just off the top of my head, but how about setting LockScreen = .t., change the form's caption, then pass the form's window handle to the spell check utility, then change the form's caption back? The reason I suggest this is that I'm making the assumption that the control is calling the Win32 GetWindowText(), which would look at the caption of the form.
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>Well, no <s>...
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>THe problem is that firing KeyDown on every keystroke slows the control to a crawl. Add to that a couple of ON KEY LABELS for special markup options and the RT control bogs down big time.

Er, I wasn't referring to the RT control. Based on your original query, I assumed that we're working with a native VFP text box. Are you saying that this is not feasible with the native VFP control? I'm not saying that it is feasible, I'm just wondering which direction I need to hack next. :-)

Is this spell check conrol firing for every KeyDown? If so, yeah, my hack would be a performance drag. If not, there may still be a way around it.