How to create a .NET event log source using WiX

Question

This is an intentional semi-duplicate of How do you create an event log source using WiX and WIX: Create EventSource using .NET message file.

My first question is, d

Answer 1

As requested. A solution that works on .NET 4 full and .NET 4 client profile using UtilExtension:

1) Add these PropertyRef's:

2) 32 bit part:

3) 64 bit part: