u can unpack it like thefabe sead but also try manual install of windows xp drivers for it WDM. they may work it worked on my lexmark and cannon from 1999 but you will get a warning message about WHQL but if they do work they may still crash or lockup the app your printing from.
I too have the laptop Windows 7/desktop Windows XP printer dilema. My laptop uses the same wireless network that my desktop does and my MP780 is hardwired to my desktop via a USB port. Did this problem get solved and if so, how?
i spent two hours on the telephone with Canon technical support, which was actually pretty impressive. They were knowledgeable, and escalated to level 2 support, rather than blow me off.
The Bottom Line: No one was able to get the MP780 to work on Windows 7 64 bit OS. The rep finally said that I should probably consider getting a newer wireless printer, as they get those networked all the time, no problem. For all the time that I spent trying to get the MP780 to network, I had probably spent 5-10 hours. I just bought the MX870 printer, and it is a good printer that networked fairly easily. Quit trying, use it as backup, and get a new printer. It will save you some time, as the MP780 just won't work.
UPDATE: I think this problem was finally solved at this thread: Canon MP780 driver install
Last edited by rcdavis; 22 Jan 2011 at 22:18. Reason: Found Answer
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