Check Installer Permissions with Windows Visual Studio 2008 C#

Lots of Installer questions, but I can't find the answer to what I want.

I've got an installer that can log in an Administrator account to continue the setup, but I don开发者_如何学Go't know how to check the current user to see if he/she already has Administrator or Power User privileges.

How can I check to see what kind of permissions the current user has before calling my Administrator login form?

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You can already put in the installer the command runas, read more at Wikipedia - Remember that this command will make the person need to use the administrator privileges.

For Windows XP I suggest you to read:

• Microsoft Windows XP Runas
• In Windows, how can I run an administrator task from a non-admin account?
• HOW TO: Use the RUN AS Command to Start a Program as an Administrator in Windows XP