HI All,
I have a infopath c# form published in site worked fine previously. Once i uninstall infopath from server and install again, now already published infopath c# form throws error. In log i found this error:
"There was a form postback error. (User: 0#.w|mydomain\name, Form Name: Form1, IP: , Request: http://domain/site/_layouts/15/FormServer.aspx?XsnLocation=http://domain/FormServerTemplates/Form1.xsn&SaveLocation=http://domain/site/Form1&ClientInstalled=true&DefaultItemOpen=1&Source=http://domain/site/Form1/Forms/AllItems.aspx?PageView=Shared&InitialTabId=Ribbon.WebPartPage&VisibilityContext=WSSWebPartPage, Form ID: urn:schemas-microsoft-com:office:infopath:Form1:-myXSD-2014-07-01T08-48-45, 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: Library not registered. (Exception from HRESULT: 0x8002801D (TYPE_E_LIBNOTREGISTERED)).)"
How to fix this issue, thanks in advance!