I am assuming that you know how to and have made the necessary share permissions on the computer which is hosting the printer?
To share a network printer being hosted by a computer running a 32 bit operating system with another computer running a 32 bit operating system, Vista or XP, you would go to Control Panel > ‘Printers’ > ‘Add Printer’ > ‘Add a network printer’. Apologies if you consider that I am stating the obvious.
Sharing a printer being hosted by a computer running 32 bit 7 or XP with a computer running 64 bit 7 is not obvious, because if you use the above method, it will not work.
It doesn't matter if the computers which will share the printer are using the same OS or bit version, and it also doesn't matter which OS or bit version is hosting the printer.
So how? First, you need to know the name of the computer which hosts the printer, and the name of the printer to be shared.
Sitting at the host computer: The procedure is the same for 7 and XP
Start > My Computer > Properties > Computer Name tab > Change button. Write down the name that you see here because this is the computer name.
Start > Settings > Printers and Faxes > Right click on the printer to be shared > Properties > Sharing tab. Write down the name that you see here because this is the printer name.
OK. Now sit in front of the other computer:
Start > Control Panel > Printers > Add printer > Add a local printer > Click on ‘Create a new port’ > ‘Local Port’ > ‘Next’.
The port name will look like this: \\Computer name\printer name
So enter the names already retrieved, ensuring that you use the same format, then click ‘OK’.
At this point, you will be presented with the ‘Add New Hardware’ process. You can either select the make and model of your printer from the lists or insert your printer installation disk if you can’t find yours. The printer will be added, and you should be able to print a test page.
you should not need the inf file for what you are trying to do.