Set-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings' -Name ProxyEnable -Value 1
Set-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings' -Name ProxyServer -Value 'proxy.ezorg.nl:8080'
Set-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings' -Name ProxyOverride -Value ';*.ehsnet.nl;*.ehealthservices.nl;172.*.*.*'
netsh winhttp import proxy ie

netsh winhttp import proxy source=ie

C:\windows\System32\bitsadmin.exe /Util /SetIEProxy LocalSystem Manual_proxy proxy.ezorg.nl:8080 "172.*.*.*"

Disable IPv6 to fix Office 365 activation/login problems.

netsh winhttp reset proxy