AC compress - 'over reved'?

[bellis@ensr.com]

   I was reading some of the traffic about the AC compressor, and how it 
shuts off ~3500 rpm or so, with some sort of time delay. Then, as I was 
driving home, I realized that I commonly spun it up to 4k + rpm, and many 
times 5k-6k rpms when I downshifted. I could hear my compresser whine as I 
did this - is this a Bad Thing? I would imagine it would be, but I wasn't 
sure. It Will kick off if I start below 3000 rpm then WOT to whatever, but 
not when I am in neutral pushing the revs up to then next lowest gear.

    Also regarding the AC compressor, what can I do to get rid of the whine 
it has from idle - 3500 rpms? It's not as bad as the 5000 rpm whine, but it 
still is painful. Does this whine inidicate potential falure in the future? 
Certain failure? certain failure IF I don't fix it? 

   Thanks in advance..

Brooks ' It's about time for a recharge I think...When do I need to do it? '