AutoCAD Architecture 2012: Error 1327. Invalid drive: S:\

Here is an interesting solution to a problem.  The error dialog messages point a solution on the Autodesk site but it will not resolve the problem.  I have used this solution before and I can confirm that it works but it depends on the "scenario".

In this "scenario", the user was on Windows 7 x64 and had AutoCAD Architecture 2012.  When you try to install Service Pack 1, you will encounter the following errors:

The following shortcuts in the search were invalid and ignored:  S:\Autodesk\FSE - Acad Standards & Templates\Plot Styles\Add-A-Plot Style Table Wizard.Ink
 

Error 1327. Invalid drive:  S:\
 

A problem prevented the Service Pack from being installed.  Contact your system administrator. Error Code:  1603
 

A exact solution match can be found on the Autodesk website here:

http://usa.autodesk.com/getdoc/id=TS64914

The actual solution in this "scenario" is to turn off User Access Control.  Please check out this post for details on how to turn off User Access Control:

http://upandready.typepad.com/up_and_ready/2011/05/windows-user-access-control.html

Thanks to Allen Seal for confirming that this tip resolves this issue.