During the installation of our program we run this method to encrpyt sections of the app.config:
// Get the application configuration file.
Configuratio
I ran into similar issues while debugging within Visual Studio 2010 on Win 7 with UAC set to it's default protection.
In order for me to get around this issue, I had to run Visual Studio as the Administrator ("Run as Administrator").
I had the same issue with trying to run the aspnet_regiis.exe to encrypt the section of my web.config. If I didn't run the commandline/console "as Administrator" I would get a commandline error that was even more cryptic: "Object already exists."