>When I try to install Infragistic NetAdvantage for .Net I receive an error message.
>
>I followed everything mentioned for Vista (UAC and IIS) but still I get the following error
>
>Error 1609. An error occured while applying security settings. Administrator is not a valid user or group. This could be a problem with the package, or a problem connecting on a domain controller on the newtwork. Check your network connection and click Retry or Cancel to end the install.

Hi Denis.

UAC is off, right?

Have you tried getting ownership of your folders?