I used SMTP class for sending mail but I have problem regarding sending a mail. when we start anti-virus then i got a error Failure sending mail but when we disable the anti-virus then SMTP work properly. Please help what we do when anti- virus still enable.

I all ready installed on server but still I have problem.

How to open the Docx file using 'microsoft.office.interop.word' this DLL. I Used Following code. Object SubTemplateFilePath = @"D:\TemplateMaster\Test1.docx"; Microsoft.Office.Interop.Word._Application oWord; Microsoft.Office.Interop.Word._Document oDoc; oDoc = oWord.Documents.Open(SubTemplateFilePath); When pointer go above statement then Silverlight application go endless loop. When Application put on local machine then application work very well but when application on IIS then get the error. I put all the setting in IIS. For Eg identity is localsystem but it is not working. Please help me.