German warning in Dutch OS

Dutch version of a Windows 2008 running on a  English ESXi host gives German warning.  When updating the VMtools I go a Warning as expected, because the Virtual machine is Hardware version 4 from a ESX 3.5 host that was moved to a ESXi 4.1.I have done this several time but the strange thing was that the warning was in German language! The rest of the setup was in English. The time zones where set correctly so why this is happening i don’t know. I press OK and the update process went on. So whatever you do don’t mention the war!