http://blogs.msdn.com/pointofservice/pages/pos-for-net-faq.aspxQ. Is POS for .NET compatible with an OPOS “device”? A. POS for .NET is compatible with many legacy OPOS device categories. See the following posting for a complete list of legacy OPOS device categories that are supported: http://blogs.msdn.com/pointofservice/archive/2008/12/01/supported-device-categories.aspxen-USCommunityServer 2.1 SP1 (Build: 61025.2)