OK, I must be in dense mode, but I can't quite figure out what it is that you're asking. Your post questions was "Can I update old library files to new format for LabView 7.1 or later?". The answer is of course - just do a mass compile on a copy so that you still have the earlier version. This won't change the style of the controls, which is what you seem to be talking about in the body of the post. If you're asking if you can automagically change the styles of the controls, a mass compile won't do that.
UPDATE: Never mind. The poster created a new thread with more info after I posted this.
Message Edited by smercurio_fc on 02-07-2006 02:40 PM