https://www.infopathdev.com:443/forums/39.aspxNew to InfoPath? Search to see if your question has already been answered. If it has not, then ask it here or the appropriate topic forum.enCommunityServer 2007 SP3 (Build: 31118.962)https://www.infopathdev.com:443/forums/thread/63560.aspxWed, 26 Jan 2011 10:39:05 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:63560dolly_k_u0https://www.infopathdev.com:443/forums/thread/63560.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=39&PostID=63560<p>I have code implemented in Infopath 2003 . Now migrated it to Infopath 2007 what are the namespace to implement . For 2003 I have used xmlns:xd=\&quot;http://schemas.microsoft.com/office/infopath/2003\&quot;. What is it when we use Infopath 2007 I am not able to identify the .xml file .</p> <p>If I am using the same namespace not able to get in xml format and getting error in XDocument.Extension properties</p> <p>Do I need to Change Microsoft.Office.Interop.Infopath.Semitrust reference. Which should I use .. (11.0) or (12.0)</p> <p>&nbsp;Getting an error in Extensions. </p> <p>&nbsp;</p>