Windows

Batch command to edit hosts file

start /d C:\Windows\System32\ notepad.exe C:\Windows\System32\drivers\etc\hosts

Customize "Send to" in Windows 7

shell:sendto

Powershell command to access a url

Can be used to create a scheduled task within a web application

powershell (New-Object System.Net.WebClient).DownloadString( 'http://example.com/scheduledtasks' )