Re: how to re-rope sash and case windows?
If you've got access into the weight pockets, installing new sash rope isn't all that big a deal, other than getting the sashes out of the jambs without destroying the trim pieces. If you don't have access to the weight pockets, then first I'd suggest using sash springs (http://images.hardwareandtools.com/P/8071813.jpg ). Other than that you'll either be removing the entire window frame or cutting access holes into the frames and installing covers once the ropes are replaced.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!