Problem:

Let's say you have such an error when you invoked a method of a COM component

Exception 65537 not trapped by the class oleexceptionmanager.

Description: "Server defined OLE exception"

(80020009): Exception occurred.

Hit T to terminate program. Hit any other key to continue.

What does the number between () mean?

Resolution:

This error means  that, for any reasons, the COM server raised an exception:

he number between () is the exception number (80020009)

What does this number mean?

follow this URL

http://support.microsoft.com/default.aspx?scid=http://support.microsoft.com:80/support/kb/articles/q186/0/63.asp&NoWebContent=1

and you'll see that, regards to the EXCEPTION pasted above ( as an example ) , the error means

(80000009)    General access denied error.

...