https://www.infopathdev.com:443/forums/41.aspxIf you're not sure where to ask your question, ask it here. If necessary, our moderators will make sure it gets classified in the correct board.enCommunityServer 2007 SP3 (Build: 31118.962)https://www.infopathdev.com:443/forums/thread/64865.aspxMon, 07 Mar 2011 09:38:49 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:64865Patrick Halstead0https://www.infopathdev.com:443/forums/thread/64865.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=41&PostID=64865<p>Hi Catharine,</p> <p>Has your IT recently instituted a new <a title="CAS Policy" href="http://en.wikipedia.org/wiki/Code_Access_Security">CAS policy</a>? If so, that could explain the issue. Since you haven&#39;t changed the XSN, it doesn&#39;t seem like that could be the issue. Another issue is if client machines use Trusted Sites for your http: server it won&#39;t work. .NET needs to run in Local Intranet. I would check those two things. Hopefully it&#39;s the latter since that could be easy to check and verify (change to Local Intranet). </p> <p>We&#39;ll check back here tomorrow and see if you got any farther.</p> <p>Good luck!</p>https://www.infopathdev.com:443/forums/thread/64846.aspxSat, 05 Mar 2011 08:56:53 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:64846Catharine0https://www.infopathdev.com:443/forums/thread/64846.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=41&PostID=64846<p>Hi, I have a number of infopath forms (2007) which have been working fine. </p> <p>Last week we started getting errors when some users open the forms. </p> <p>The error message is... InfoPath cannot open the following file: http:/........./QdabraWebService/Documents/2213/xxxxx</p> <p>&nbsp;InfoPath cannot open the form. To fix this problem, contact your system administrator. Form template: <a href="http://......../QdabraWebService/Forms/NewSKURequest/template.xsn">http://......../QdabraWebService/Forms/NewSKURequest/template.xsn</a> InfoPath cannot open the selected form because of an error in the form&#39;s code. One or more required components of InfoPath or the form template cannot run because of a security restriction. Contact your system administrator or run Setup again to confirm that .NET Programmability Support is installed on your computer. Request for the permission of type &#39;Microsoft.Office.InfoPath.InfoPathPermission, Microsoft.Office.InfoPath.Client.Internal.Host, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c&#39; failed. at Microsoft.Office.Interop.InfoPath.SemiTrust.XDocumentsCollectionWrapper.Open(Object varURI, Int32 dwBehavior) at AdminTool.Configuration.btnEditDocument_OnClick(DocActionEvent e) at Microsoft.Office.Interop.InfoPath.SemiTrust._ButtonEventSink_SinkHelper.OnClick(DocActionEvent pEvent) </p> <p>No changes have been made to the form in the last 3+ weeks.&nbsp;</p> <p>The forms are signed with a valid certificate.</p> <p>The errors are seen on various PCs.</p> <p>Sometimes clearing the cache seems to work -&nbsp;but not for all PCs.&nbsp;&nbsp;&nbsp;Does anyone have any ideas ?</p> <p>Thank you </p> <p>Catharine</p>