Proxies and internet access on corporate PCs

Manual proxy, PAC and WPAD, the difference between user (WinINET) and system (WinHTTP) proxy settings, bypass lists and SSL inspection side effects.

Skills you'll practise

Distinguish WinINET (user) and WinHTTP (system/service) proxy settings
Diagnose apps that fail because of proxy or SSL inspection
Recommend a proper fix (bypass list, trusted root, proxy config) rather than a workaround

1.Proxies and internet access on corporate PCsVideo · 5 min
2.Two kinds of proxy settingsLesson · 13 min
3.PAC files, WPAD and automatic proxy detectionLesson · 14 min
4.Proxy authentication and apps that fail behind the proxyLesson · 12 min
5.Proxies and internet access on corporate PCs: knowledge checkKnowledge check · 15 questions
6.Line-of-business app fails through the proxyScenario
7.Final exam5 questions · passing it completes the course, so people who already know the material can test out

The lessons and questions are written from these references, so learners can go back to the original.

Microsoft Learn: netsh winhttp
Microsoft Learn: Configure device proxy and internet connectivity settings
Microsoft Learn: How the Windows Update client determines which proxy server to use

Tell us about your team and we'll walk you through setup, from choosing jobs to your first skills check.