Do you have TextFX Viz Settings +Viz capture keyboard Ctrl-C,X,V set? If so then it's TextFX clipboard code that is crashing. Try TextFX Viz Copy Entire Selection (no append).
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The new 4.2.2 version crashes on Windows VISTA when pressing CTRL + C (Copy).
The context menu function (Copy) works ok.
Do you have TextFX Viz Settings +Viz capture keyboard Ctrl-C,X,V set? If so then it's TextFX clipboard code that is crashing. Try TextFX Viz Copy Entire Selection (no append).