Sharing between Windows 7 and Windows XP

Trying to share files between Windows 7 and Windows XP? Follow the instructions here:

http://www.howtogeek.com/howto/windows-7/share-files-and-printers-between-windows-7-and-xp/

After following these, I found that the old computer still had the default workgroup set to MSHOME on my old machine and WORKGROUP on my new machine. Changed the old machine to WORKGROUP by clicking Windows Key + Pause, clicking Computer Name, clicking the Change button and changing the Workgroup: to WORKGROUP. Restart was required.