StickMonsters

You can have the xsd.exe tool merge the xsd's for you like this: xsd.exe gpx.xsd cache.xsd /c /l:vb I haven't looked at how those particular xsd's relate, but I'm about to get into it. I'd love to share information on the subject. By the way, Groundspeak uses version 1.0 of the gpx.xsd (http://www.topografix.com/GPX/1/0/gpx.xsd). You can tell by looking at the "header" of a gpx file from them.