Unable to open work file with IIS but work fine when run with VS

Question

am stuck in very strange issue. What i am doing is opening a file through Miscrosft Office DLL

Microsoft.Office.Interop.Word.Application appWord = new Microsoft.Office.Interop.Word.Application();       
    wordDocument = appWord.Documents.Open("C:\\aa.docx");

enery thing is working fine till i run my application from visual studio, but when i run it through IIS thne wordDocument comming null.

i think it is rights issue but dont know whet to doo. My web site app pool identity is "LocalSystem"

Stop. Microsoft have *never* supported automating Word from a service (whether that be a service you write yourself or IIS) — Damien_The_Unbeliever, Jan 17 '14 at 14:29
@Damien_The_Unbeliever: On that note, perhaps I can throw a little more fuel on the fire: [Considerations for server-side Automation of Office](http://support.microsoft.com/kb/257757) — Cᴏʀʏ, Jan 17 '14 at 14:30

Patrick Hofman · Answer 1 · 2014-01-17T14:57:27.553

0

Usually there are two issues:

You haven't installed Office on the IIS machine

You have no access to the file specified.

There is another big thing you should consider: Word interop IS NOT RECOMMENDED on an IIS process. See this Microsoft document.

edited Jan 17 '14 at 14:57

answered Jan 17 '14 at 14:28

Patrick Hofman

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I have word 2010 installed on server. – DDR Jan 17 '14 at 15:28
See the document from Microsoft on how this is not supported. Maybe you can find something similar to epplus (epplus.codeplex.com) which is a wrapper that reads the XLSX files (without Excel). – Patrick Hofman Jan 17 '14 at 15:35
If this answer was helpful to you, please don't forget to mark your question as answered. – Patrick Hofman Feb 13 '14 at 15:10

Unable to open work file with IIS but work fine when run with VS

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