Why am I receiving exception from Office's Outlook library?

c# outlook office-interop
Zee picture Zee · Oct 12, 2012 · Viewed 25.8k times · Source

I have an application that calls

Email hello = new Email(appropriate constructor);
hello.Email_Send();

I'm receiving the exception:

Retrieving the COM class factory for component with CLSID {0006F03A-0000-0000-C000-000000000046} failed due to the following error: 80080005 Server execution failed (Exception from HRESULT: 0x80080005 (CO_E_SERVER_EXEC_FAILURE)).

from System.Runtime.InteropServices.COMException.

using O = Microsoft.Office.Interop.Outlook;    
class Email
{
    public void Email_Send()
    {
        O.Application outlook = new O.Application(); //Exception thrown here.
        O.MailItem message = outlook.CreateItem(O.OlItemType.olMailItem);
        message.To = Receiver;
        message.CC = Sender;
        message.Subject = Subject;
        message.Body = "This is an automated message sent at " + DateTime.Now.ToString("HH:mm:ss") + " about " + Body_Topic + System.Environment.NewLine + Body_Content ;
        message.Send();
    }
}

This error has never happened previously, and there has been no change to the code that I know of. http://support.microsoft.com/kb/825118 doesn't seem to fit the my symptoms - My computer doesn't stop responding, etc. Any help diagnosing the issue would be greatly appreciated!

Answer

Zee picture Zee · Oct 13, 2012

This error was caused by visual studio being run as admin. Outlook doesn't allow separate users to access the same mailbox (I had the outlook application open on desktop). Even though I have local admin access w/ my domain user, running VS as admin must associate the process to a different user object? Not exactly sure how this works, but... Resolved.

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