Member 9291223 wrote:But this works fine in local machine. Issues came after deployment.
OK, then it is no so strange. Office Interop works only when matching versions of Office an Office Interop assemblies are installed. (In your case, it could be just the Word-related part.) The fact the Interop Assembly was installed in your local GAC allowed you to build your product, and the fact that the matching version of Office is installed allowed you to run your application on a local machine. On the host where you deployed it, it could not be the case…
Logical, isn't it?