WIX Autogenerate GUID *?
c#, guid, wix
Solution
`Product/@Id="*"` randomly generates a new GUID, which is sufficient for product codes. `Component/@Guid="*"` calculates a GUID that stays the same as long as your target path stays the same, which is necessary to comply with component rules.
Problem
Let's say I generate my WIX XML file with a Product Id of *. Also for each Component GUID I use a *. ``` <Product Id="*" Name="xxx" Language="1033" Version="1.0.0.0" Manufacturer="xxx" UpgradeCode="xxx"> ``` Behind the scenes is the * spinning a unique GUID each time I compile my WIX Installer? Let's say I have version 1.0.0 installed a machine. Then I recompile my WIX Installer to version 1.0.1. When I go to install 1.0.1 how does WIX know that 1.0.0 is already installed and thus will remove all files/registry entries and install 1.0.1? Should I be using * from GUID or should I have a unique ID/GUID in my WIX XML configuration?