Sometimes you have to run certain commands or application as an adminitrator. And, right-mouse clicking, and then selecting "Runas administrator" isn't too convenient. There are a few ways to simplify it. I'll use Vista-Hosts file editing as an example:
1. Use "runas"
From cmd or Windows-Run, type in this:
runas /user:administrator "notepad C:\Windows\System32\Drivers\etc\hosts"
This will ask administrator password, however.
2. Use CTRL+SHIFT+Eneter
From Windows-Run, type below:
3. There's a utility, called "Start++". You can do "sudo" with it:
sudo notepad C:\Windows\System32\Drivers\etc\hosts