On 06/21/2016 03:37 PM, Brad King wrote:

Nils, the installers in question were produced from your WiX
installer work (thanks again for that!).  Is this something wrong
with the 64-bit installer or simply a Windows/MSI subtlety/bug?



I can't try this out here right now but looking at the windows installer documentation[1] applications should be automatically notified about environment variable changes performed by the .msi by the WM_SETTINGCHANGE message.

I am not sure which processes listen and act on the message.

Nils

[1] https://msdn.microsoft.com/en-us/library/windows/desktop/aa372883(v=vs.85).aspx
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