You are not an administrator" and no it was not my Vista settings because I tried this:
Vista Launcher Information
Module 6 included many improvements to the DDO launcher for better compatibility with Windows Vista. While the changes will allow for a much smoother experience when installing DDO for the first time, it may require some necessary configuration changes for those already running the game in Vista. To help alleviate any confusion or issues after the Module 6 update, we wanted to provide some additional instructions on what to do after you have patched to Module 6 on a Windows Vista machine.
After you have completed patching your client, the launcher will prompt you to allow it to restart. Upon restart, you may receive an error that states you cannot run this program as an administrator (due to the fact that previously, many people had to check the “Run as Administrator” option in order to get DDO to run on Vista). If you receive this error message, ensure that “TurbineLauncher.exe”, “TurbineInvoker.exe”, and “dndlauncher.exe” all have the option “Run as Administrator” unchecked:
1) Open Computer (or My Computer) in the Start Menu and browse to the program directory for DDO (the default path is C:\Program Files\Turbine\Dungeons and Dragons Online)
2) Right-click on the file “dndlauncher.exe” - depending on your system settings, you may not see the .exe at the end. If this is the case, just select the one that is labeled as an Application
3) Click Properties, and then select the Compatibility tab
4) Under Privilege Level, unselect “Run this program as an administrator” and then click OK
5) Repeat this process for the files “TurbineLauncher.exe” and “TurbineInvoker.exe”
As with any update, you may need to remove the current exceptions in your firewall, and then add exceptions for “TurbineLauncher.exe”, “TurbineInvoker.exe”, and “dndclient.exe”. If you have the game installed in the Program Files folder, you may need to leave “Run this program as an administrator” checked ONLY on dndclient.exe.
As always, Technical Support is available via chat, email, and the forums for any questions. We hope this information is helpful!