How to detect presents in Windows system

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Tech stack
c
Domain
desktop, operating-systems

Research direction

The issue names no source files or tests and does not define a specific implementation. Start by clarifying the supported Windows installation cases, including the registry DisplayIcon, portable archives, retroarch.exe, and playlists; done would be an agreed reliable detection approach.

Written by the indexing model from the issue text.

Description

platform: windows

Hey, I'm working on a tool that interacts with RetroArch and I'm wondering about it's location on user's pc.

As far as I understand, there are three ways it can be installed: from Steam, by installer or just downloaded as an archive.

Steam is obvious, installer adds a registry key Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\RetroArch.
Although, i use DisplayIcon property, it doesn't seem reliable.

So, is my method okay or you can think of something better?
Is it possible to detect portable version of RetroArch? Maybe it adds something to AppData (or somewhere else)?
Eventually, I'm interested in retroarch.exe path and playlists.

Thanks!

Dominant language
C
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