Windows 7 [VBS] Name of error files containing err.description ?

[Toulousaing]

Hello all,
I'm looking for the name and location of the file which contains the Err.Description text of the Err object used within VBScript.
Winerror.h has the error numbers, but the corresponding texts are in comments.

My current problem is, when you start an Internet Explorer instance with

Set objExplorer = CreateObject("InternetExplorer.Application")

if you close manually the i.e. window previously displayed with a

objExplorer.Visible   = 1

a subsequent

objExplorer.quit

yields an error 462 and I did not find where the Err.Description text is recorded.
Thanks.