Turn off changer fichier extension warning in Windows 7

[Clippy]

Existe-t-il un moyen de turn off the extension de fichier rename dialog in Windows 7?

The one that prompts you

Rename: If you change a filename extension, the file might become unusable. Are you sure you want to change it?

[ayi]

In response to a comment about the accepted answer, J’ai aussi found the AHK script to be quite slow. This modification seems to make it faster:

While, 1
{
 WinWaitActive, Renommer ahk_class #32770
 send o
}

You’ll notice J’utilise windows in french. For english use:

While, 1
{
 WinWaitActive, Rename ahk_class #32770
 send y
}

For windows in portuguese (au moins the pt-BR version), use:

While, 1
{
 WinWaitActive, Renomear ahk_class #32770
 send s
}