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Level 2

Do I need to do System Search before setting Prerequisites

I am using a basic MSI only. Do I need to do System Search before I set Prerequisites. What is the best way handle prereqisites. I have 3 features with some shared prerequisites and some that are exclusive to each. Can anyone help me?
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Level 4

Prerequisites functionality works - you can either embed the entire prerequisite in your installer or use redistributable packages.
Once the prerequisites are set, on installation, the installer checks/searches the target machine for these prerequisites and installs them only if they are not already present. you don't need search the target machine manually.
The installer checks and installs all the prerequisites before starting your product installation.
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