You can not modify an AutoCAD Mechanical deployment with an AutoCAD patch.
You need to download the AutoCAD Mechanical 2005 SP1 and use that instead.
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Thanks
Scott Mollon
ACADM/MDT Quality Assurance
Autodesk, Inc.
"danstoker" wrote in message
news:28960467.1101913403728.JavaMail.jive@jiveforum1.autodesk.com...
> I'm trying to Modify Administrative Image on AutoCAD Mechanical 2005 with
an AutoCAD SP1. But the installation wizard keep saying" The file you
specified is not a valid AutoCAD ... "