Impromptu requires that a Windows 2000/XP user have Local Administrator authority to do the following:

New install

Create a new catalog (not a personal version of a distributed catalog - this pertains to Impromptu Administrator.)

Change defaults for data formats (e.g. change format for numeric data to currency). This is mostly important for people who use more than one data family.

Change default locations for files.

Change general settings such as whether the Wizard is on or off.

Otherwise, the department Administrator will be required to perform these functions. Many of these functions will appear to succeed, but not return an error message if they have 'not taken'. ITS/ACS is recommending (but not requiring) Local Administrator for Impromptu use.