Beginning with AutoCAD 2004, the location of some of your customized files has changed. The reasons for the file location changes include the following:
If roaming profiles are allowed on your network, your “roamable” files are located in the \Application Data\Autodesk\<Product Version> folder, and your “nonroamable” files are located in the \Local Settings\Application Data\Autodesk\<Product Version> folder.