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URGENT: open word application by impersonation

Hallo experts,

I am using the following code to open a word document. Now my problem is in the line

 objApp = Activator.CreateInstance(objClassType);

I want to impersonate that with a domain, uid and pwd. How to do it? Means I want to open the document with some different uid & pwd.


Please help

Type objClassType;
object objApp;

public bool Open()
        {
            try
            {
                object missing = Missing.Value;

                // Get the class type and instantiate Word.
                objClassType = Type.GetTypeFromProgID("Word.Application");
                objApp = Activator.CreateInstance(objClassType);

                //Get the document collection.
                objDocs = objApp.GetType().InvokeMember("Documents", BindingFlags.GetProperty, null, objApp, null);

                //Add a new workbook.                
                Parameters = new object[12];
                Parameters[0] = sFilePathWithFileName;
                Parameters[1] = missing;
                Parameters[2] = Missing.Value;
                Parameters[3] = false;
                Parameters[4] = missing;
                Parameters[5] = missing;
                Parameters[6] = missing;
                Parameters[7] = missing;
                Parameters[8] = missing;
                Parameters[9] = false;
                Parameters[10] = missing;
                Parameters[11] = missing;
                objDoc = objDocs.GetType().InvokeMember("Open", BindingFlags.InvokeMethod, null, objDocs, Parameters);

                //Return control of Word to the user.
                Parameters = new object[1];
                Parameters[0] = true;
                objApp.GetType().InvokeMember("Visible", BindingFlags.SetProperty, null, objApp, Parameters);

                return true;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return false;
            }
        }
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Sinisa VukSoftware architect
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Top Expert 2012
Commented:

Author

Commented:
@sinisav:

No I tried to impersonate before open method is called. Impersonation was successful but open method can not open the document because of insufficient permission. Probably at time of opening the doc some parameter is required related with impersonation.

regards,
soumen
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Most Valuable Expert 2012
Top Expert 2014

Commented:
Have you tried impersonating before creating the Word instance? That should make word run under that different user and be able to access the file.

Another option is to copy file locally and then open in Word.

Author

Commented:
@CodeCruiser:

Yes I tried to impersonate before creating the word instance. But still it is not working. Yes copy file is a good option. Let me check that. But each and every time copying each and every file may lead the operation of file opening slow. Still let me check, give me some time
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Most Valuable Expert 2012
Top Expert 2014

Commented:
Ok. When you impersonate and run Word, is word running under impersonated user in task manager?

Author

Commented:
@CodeCruiser:

No,

When I impersonate and run Word, is word running under impersonated user in task manager

Actually that is the problem

Soumen
Sinisa VukSoftware architect
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Top Expert 2012

Commented:
So... it is impersonate code problem. Can you drop some notice how you do it?
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Most Valuable Expert 2012
Top Expert 2014

Commented:
Try doing a process.start with the impersonated user credentials.

Author

Commented:
@CodeCruiser:

After impersonation if I start process.start to open word doc, then the process is starting by impersonated user. So impersonation code is OK.

But instead of process.start if I use code given above, to open word application, the impersonation fails. It is the problem actually. I can not use process.start. But I have to access the word application objects to insert some text and formatting in that word document. Thats why I can not user process.start. I need word object and sub objects like region, paragraph etc.

Soumen
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Most Valuable Expert 2012
Top Expert 2014
Commented:
Then the best option, I think, is to copy the file locally.

Author

Commented:
Thanx