Two Problems - RPC server unavailable exception , Excel.exe in Task manager

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Hi Everybody,

I m facing the two problems RPC unavailable exception , Excel.exe in Task manager

For my windows application i need to copy a template excel file and rename as Today's Date file.Then write the contents , close like excelApp.Quit() , saves the excel sheets also.

Excel.exe
But still the Excel.exe is exists in Task manager. Why? How to avoid?
I closed the excel application properly.

RPC server unavailable exception
I copied the template file as Today's date file.
when I try to open the Today's date file exception as occurring like RPC unavailable exception. Why? How to solve?

C#

wbApp = excelApp.Workbooks.Open(fileName, Type.Missing, Type.Missing, Type.Missing,Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing,Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);

wsApp = (Microsoft.Office.Interop.Excel.Worksheet)wbApp.Sheets[1];

please help me
Thanks in advance

Note - I am using C#, .Net
and 2003 MS office

Posted 20-Apr-11 2:36am

SwaxRak

Updated 20-Apr-11 2:41am

Henry Minute

v3

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Henry Minute · Answer 1 · 2011-04-20T02:46:00

Solution 1

I do not know how to help with the Task bar issue, perhaps someone else will have a solution.

For the RPC error, take a look at this[^] thread on MSDN also concerning Office 2003. (Scroll down to the second last answer).

Posted 20-Apr-11 2:46am

Henry Minute

Ali Sabzevari · Answer 2 · 2011-06-06T22:44:00

About the first problem you have to free all of the COM objects created.
It's a goot tip that when you using COM objects, don't use two dots!
Like this:
Do not write this: application.Workbooks.Open(filename)
Write this:

workbooks = application.Workbooks;
workbook = workbooks.Open(filename);

then at the end you have to free that tow objects by following code:

workbook.Close();
Marshal.ReleaseComObject(workbooks);
Marshal.ReleaseComObject(workbook);
Marshal.ReleaseComObject(application);
application.Quit();