Beyond Compare is a great little utility that can be used to compare files. It's from Scooter Software and is only $30. What makes this utility even cooler is an addon written by Frank Perez (which is $FREE.) He wrote a utility that lets us compare FoxPro files ... like classes, forms, reports, and such. This is awesome ... I can't tell you how many times I have wanted to compare two different reports to see what is different!
Way to go Frank!!!
Read all about this on Frank's blog at http://www.pfsolutions-mi.com/blog/2008/03/08/BeyondCompare.aspx. I have added links in my Cool Tools section to Beyond Compare and to Frank's site for downloading the addon.