Just trying to print from Vista 64-bit (HP Pavilion a6530f) over the network to my SCX-4500 printer connected to an Airport Express.
Installed AirPort Utility Setup 5.3.2 for Windows to check IP and proper configuration of Express.
Ran Bonjour Printer Wizard. Detected printer. Installed driver. Inexplicable error...
"You do not have sufficient access to your computer to connect to the selected printer."
There is an Apple support item - Bonjour for Windows: Printer wizard says "you do not have sufficient access", but the scenarios it lists are not applicable.
SCX-4500 printer appears in available printers.
Printed from Firefox 3. No problem. (Also no problem printing from IE 7.)
Attempted to print from Acrobat Reader 8.1.3 EPIC FAIL.
Same story for Acrobat Reader 9. (As added bonus, Reader 9 update tries to install Updater 6.0.2, which crashes.)
Long investigation appears to indicate there is an unpatched Microsoft Windows bug affecting reading printer driver properties under Vista 64-bit. If you application can print without reading those properties, or you're lucky, you may be fine. Otherwise, the application will most likely crash.
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It would be really nice if Microsoft would fix this, and in the meantime, it would be nice if Adobe issued some kind of work-around.