Build 7100 RCfail to connect(fail to connect through win 7direct connect and connect through xp mode)Will try our luck through newly released build 7600 enterprise.Build 7600 failed to connect to NT 4.0 too.But both 7100 and 7600 connect to internet or use outlook express to send mail successfully.

Hi Sanyulynn, Please understand that XP mode provides the ability to run applications that cannot run natively on Windows 7 within a virtualized XP image. It cannot control host computer. So, we cannot let Windows 7 Join a Windows NT 4.0 server through Windows 7 XP mode.Thanks.