Microsoft.office.interop.word.documents fails to sign MS word document on IIS

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i have this worry, i have been able to work on a solution that implements signature and signs an MS Word document. now the worry I have is, it works fine when i run it direcrtly from Visual Studio, but when i take it to IIS directly, it does not respond or behave. I have been able to configure it to connect to SQL server from IIS so thats not a worry, the problem is now to sign the document.

I have since used this Library Microsoft.Office.Interop.Word.Documents from Visual Studio. When i run it directly from VS it works 100% but when i deploy on IIS it fails completely. What do I have to do in this case? any ideas?

What I have tried:

I have tried to Register the DLL does not seem to work

Posted 20-Sep-19 22:55pm

Shannaz

Updated 21-Sep-19 15:19pm

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Richard MacCutchan 21-Sep-19 9:22am

Do you have MS Word installed on the server?

Shannaz 21-Sep-19 12:10pm

yes i have that installed on ma PC @ Richard

Richard MacCutchan 22-Sep-19 3:11am

Then maybe the comments by Dave Kreskowiak are the answer. But either way you have not given us any useful information about what actually happens when you try it.

[no name] 21-Sep-19 9:27am

The process runs on the server in response to a "message"; like all the other services on your web server. That you create.

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Dave Kreskowiak · Answer 1 · 2019-09-21T15:19:00

Solution 1

You cannot use Office Interop in a web application. It's not supported and will fall on it's face when two users hit the thing at the same time.

Office does not support being executed from a service and does not support re-entrancy.

Posted 21-Sep-19 15:19pm

Dave Kreskowiak