I am getting the error for Infopath 2007 form when i try to submit the data of Richtextbox used on infopath form.
I have 3 environments i.e. Development,Testing and Production. Everything is working fine on Development and Production but testing environment is throwing this error. All 3 environments have same configuration.
The error is as below
There was a form postback error. (User: DOMAIN\user, Form Name: ResponderReview, IP: , Request: http://mysite/_layouts/Postback.FormServer.aspx, Form ID: urn:schemas-microsoft-com:office:infopath:frmName:-myXSD-2007-03-19T09-18-22, Type: InvalidCastException, Exception Message: Unable to cast COM object of type 'HTMLCHECKERLib.XMLPProcessorClass' to interface type 'HTMLCHECKERLib.IHTMLtoXHTML'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{A260B372-BC78-441B-8764-D0B83F4004F4}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)).)