Seting per-machine proxy settings in Win8/IE10 Programmatically

Hello,

My company requires internet filtering using proxy settings set programatically for all users of a given machine and IE 10 no longer recognizes the registry keys below.  I've searched the world over and the only reference I found was a reference to the new IEAK which isn't available yet and is probably not what I need since I need to do this programatically so that the program can be run on any win8/IE10 machine and set the proxy accordingly.

HKLM "SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings" "ProxyEnable" = 1
HKLM "SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings" "MigrateProxy" = 1
HKLM "SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings" "ProxyServer" = ...

Please tell me there  is a registry key somewhere or easy way to set global proxy settings.

Thanks in advance