InfoPath Dev

After I set up our new MOSS 2007 (x64) SP1 I receive following error in the Browser during form load for forms with managed code:

The form has managed code with helperclasses that use serialization. But the same forms worked flawlessly on the MOSS 2007 (x86) prior to SP1.
Addition info:

• The "Load Form" dialog in the browser stays indefinetely
• The form works well in InfoPath Clients
• Design Checker in Infopath shows no errors
• Browser compatibility checker (Verify on Server) shows no errors
• Forms without my helperclasses are loaded without errors in the browser

Any idea how to solve this problem is much appreciated! I seem to lack the skills to overcome this by myself.

Thank You,  Werner

Hi,

Please check your web.config file for an entry for Infopath and register it as a safe control.

 Bhavesh

Dear Bhavesh,

Thank you for the suggestion. In the meantime I found out that there is no way to to serialize XPathNavigator. I solved in supplying a new instance of the XPathNavigator everytime one is needed.

Best, Werner