Origin uses Manifest files to store information. The files are stored in C:\Program Data\Origin\LocalContent and use the .mfst extension. Each file contains an HTTP query string:

?id=Origin.OFR.50.0001456&dipInstallPath=C%3a%5cGames%5cTitanfall2

Depending on your key-value collection implementation, you should make sure the key lookup is case-insensitive and allows for duplicate keys. For whatever reason, some Origin manifests contain a dipInstallPath and dipinstallpath value.

Furthermore, DLCs and Add-ons can have their own manifest file, which won't contain an installation path. Games installed with Steam have a special ID that ends with @steam.

Note: EA is deprecating Origin and will be replacing it with EA Desktop.

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