installation - How does Burn in WiX 3.6 bundle MSI files into an .exe? -

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i'm interested in knowing how wix bundling exe files created burn. know creating self-extracting exe file pretty straightforward, having done million times in winrar. directory exe file being unpacked to, , how installation writing location add/remove programs?

also, how ux file being kept around uninstall? , more interesting, goes on during upgrade?

burn doesn't create typical "self-extracting .exe" unpacks contents launches. instead, extracts bits needs (the ux or bootstrapper application) temporary directory , caches packages needed when they're needed. way, no time wasted extracting packages aren't used.

the cache directory named "package cache" , stored in appdata folder, 1 depending on whether it's per-user or per-machine package.

there's nothing special upgrades, except when 1 bundle upgrades another, previous bundle's cache removed.


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