I need to disable Ctrl-Alt-Del from a lV 5.1.1 vi under win2k

[HAIMD]

Thanks

[JRA]

Take a look at this Discussion Forum. They are talking about the same thing you are asking. The version of LabVIEW won't matter since Ctrl-Alt-Delete is a kernel level method. Disabling this will require you to work with the OS and this Discussion Forum discusses the method for doing that.