Server Error while doing Page Count

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C#3.0

C#

This is the error as shown below while doing a page count:

Server Error in '/recordsmanagement' Application.
Retrieving the COM class factory for component with CLSID {000209FF-0000-0000-C000-000000000046} failed due to the following error: 80070005 Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)).

Exception Details: System.UnauthorizedAccessException: Retrieving the COM class factory for component with CLSID {000209FF-0000-0000-C000-000000000046} failed due to the following error: 80070005 Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)). Source Error:


Line 387: Microsoft.Office.Interop.Word.ApplicationClass WordApp = new Microsoft.Office.Interop.Word.ApplicationClass();//error referencing to this line.

all the refereencing has been done and was working fine on the production machine..here is the full code of the web application doing page count:

Microsoft.Office.Interop.Word.ApplicationClass WordApp = new Microsoft.Office.Interop.Word.ApplicationClass();


// give any file name of your choice.
string tempath = numberofpage;
RegexOptions options = RegexOptions.None;
Regex regex = new Regex(@"[ ]{2,}", options);
tempath = regex.Replace(tempath, @"");
tempath = tempath.Replace(" \\", "\\");
object fileName = tempath;
object readOnly = false;
object isVisible = true;

// the way to handle parameters you don't care about in .NET
object missing = System.Reflection.Missing.Value;
object objDNS = Microsoft.Office.Interop.Word.WdSaveOptions.wdDoNotSaveChanges;

// Make word visible, so you can see what's happening
//WordApp.Visible = true;
// Open the document that was chosen by the dialog
Microsoft.Office.Interop.Word.Document aDoc = WordApp.Documents.Open(ref fileName,
ref missing, ref readOnly, ref missing,
ref missing, ref missing, ref missing,
ref missing, ref missing, ref missing,
ref missing, ref isVisible);

Microsoft.Office.Interop.Word.WdStatistic stat = Microsoft.Office.Interop.Word.WdStatistic.wdStatisticPages;
count = aDoc.ComputeStatistics(stat, ref missing);

WordApp.Quit(ref objDNS, ref missing, ref missing);

aDoc = null;

WordApp = null;

GC.Collect();
So far i have not found a solution to it