Unable to open MS word document in window service in C#

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C#

In my Window Service, I am opening MS Word document by the following line:

doc1 = WordApp.Documents.Open(UpFile, ReadOnly: true);
I am using:

using Word = Microsoft.Office.Interop.Word;
The same code works fine in Console Application but not working in Window Service. Any suggestions? I wan't my code to run at a specific time in a day so I am creating Window Service. Any other alternative?

(My code opens word documents and calculates line/word/character count/date last saved/last commented by)

What I have tried:

I tried coding the same in PHP but I am unable to get date last saved and the name of the person who last commented.

Posted 24-May-16 8:51am

mariummalik22

Updated 24-May-16 20:54pm

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ZurdoDev 24-May-16 15:03pm

1. What is the error?
2. Office apps do not support automation, even though you can do a lot. But Microsoft's position has always been that these are user driven applications and may not work right when automated.
3. I think the OpenXML SDK may help you.

ZurdoDev 24-May-16 15:03pm

4. If it runs in a console app then use task scheduler to schedule the console app.

mariummalik22 24-May-16 15:18pm

Thanks. I will try that now

2 solutions

Solution 3

To run Interop libraries on windows service needs much access permission I guess, windows services should running under system privilege and then it should access your word documents.
To give access create a folder named Desktop in following folders
- for x64 system is necessary to create the following folder:
C:\Windows\SysWOW64\config\systemprofile\Desktop
- for x86 system:
C:\Windows\System32\config\systemprofile\Desktop
(it looks a funny solution but works)
see below snippet
Hot Malva tech blog: How to use Office 2007 Automation in Windows 2008 service[^]

OR

Other alternative is to create a console application and use a teak scheduler to run your console application on specific time.
I have used above technique on interop application in console app and it works great with windows scheduler
(Note: the user used to create a windows scheduler should have administrative rights)
Hope it helps

Posted 24-May-16 20:54pm

koolprasad2003

Updated 24-May-16 20:57pm

v2

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Sergey Alexandrovich Kryukov · Accepted Answer · 2016-05-24T09:24:00

You should not use Word interop in the server setting. Please see these Microsoft articles:
http://support.microsoft.com/default.aspx?scid=kb;EN-US;q257757#kb2[^],
http://support.microsoft.com/kb/257757/en-us[^].

And it's also better not to use it on other situations. The reasonable opportunities include Microsoft Open XML SDK and NPOI (NPOI - Home[^]). Please see my past answers referenced in this one: How to add microsoft excel 15.0 object library from Add Reference in MS Visual Studio 2010[^].

—SA