I've found out by installing this on multiple windows 7 systems that in some cases it takes increasingly more time to respond to any request. The first request might take 15 seconds, but the longer the server/printer exists in the system (this doesn't even relate to whether it's the first or the 100th request), the time it takes to even register that request gets longer and longer. After 3 days on installing the printer, it took around 2 minute to just respond to a print request. I haven't been able to hone out on which Windows 7 systems/editions this issue takes place, but it does on the majority of them. Been trying to find a solution since the last 2 months but unable to do so. Any help would be greatly appreciated.