User ID used instead of IWAM.

From: Paul (paulz_at_cavendish.co.uk)
Date: 09/16/04 

Date: 16 Sep 2004 09:35:43 -0700

We have a problem where the a user's ID is being used instead of the
IWAM user to access a component on the web server. The user does not
have permission to use the object directly through DCOM and this
results in both a DCOM error logged against that user and a permission
denied error in the ASP page.

This is occurring on IIS5 Win2000, the web site application is set to
run high/isolated and the component is an exe wrapper for ADO.

Does anyone know how or why IIS5 is using the wrong ID?