Aug 18, 2010 04:31 PM|hans_v|LINK
I am using Microsoft.Office.Inetrop.Word Assembly for automation
That's were your problem begins, because you shouldn't use this on a web server:
"Microsoft does not currently recommend, and does not support, Automation of Microsoft Office applications from any unattended, non-interactive client application or component (including ASP, ASP.NET, DCOM, and NT Services), because Office may exhibit
unstable behavior and/or deadlock when Office is run in this environment."