Yeah, these guys must be using something out of date to zip this stuff up with. Like someone else said, point them at Infozip, or Winzip if they like (which is based on infozip anyway). It's been a while since any zip program didn't support LFN's I think.. or make sure they aren't checking the "store filenames in 8.3 format" box in Winzip, if that's what they're using...