Apple Mobile Device Ethernet fails to install

Hi,

I have tried to install on my laptop running Windows 7 the "Apple Mobile Device Ethernet" driver several times, but each time, I get an error message saying that there's not enough system resources to complete the requested service. All other iPhone features run just fine (synchronising, copy, ...).

I already desinstalled and re-installed iTunes and all others apple software. I also deactivated my antivirus (Avast) during the installation, but nothing works.

Can somebody tell me how to proceed?

Thank you in advance for your help,

François Chalumeau