Clean Com components when host the asp.net website in IIS

Question

I have a website hosted in IIS. My application is all about writing and reading data to/from Excel document.

When I run the application from VS,i'm seeing only one EXCEL.exe all the time But When I host the same application in IIS ,for every writing its creating one excel object and showing in Task-manager,Hence sometimes my website stops responding.

Below is my code

    try
            {
                xlApp = new app.Application();
                xlWorkBooks = xlApp.Workbooks;          
                xlWorkBook = xlWorkBooks.Open(FilePath, missing, false, missing, missing, missing, true, missing, missing, true, missing, missing, missing, missing, missing);   
                xlWorkSheet = xlWorkBook.Worksheets.get_Item(index);
//code …………………………….
                xlApp.DisplayAlerts = false;
                xlWorkBook.Save();
                boolWriteSuccess = true;
                xlApp.DisplayAlerts = true;
            }
Catch()
{
}            
            finally
            {
                GC.Collect();
                GC.WaitForPendingFinalizers();
                Marshal.FinalReleaseComObject(xlWorkSheet);
                Marshal.FinalReleaseComObject(xlWorkSheets);
                xlWorkBook.Close(Type.Missing, Type.Missing, Type.Missing);
                Marshal.FinalReleaseComObject(xlWorkBook);
                xlWorkBooks.Close();
                Marshal.FinalReleaseComObject(xlWorkBooks);
                if (xlApp != null)
                    xlApp.Quit();
                Marshal.FinalReleaseComObject(xlApp);
            }

Here is the screen shot of Task Manager when website hosted in IIS

I want to clean the excel.exe from task manager always but some how I'm unable to clean. Please help me in this regard.

Answer 1

after saving the excel you should close the workbook. as each time you are creating nea app.application it will create new excel.exe after saving excel use below code

    try {
foreach (Process proc in Process.GetProcessesByName("Excel"))
        {
            proc.Kill();
        }}catch(Exception ex){
MessageBox.Show(ex.Message);}