In this video, we'll fix the "PatchClientDLL::CheckDatFiles Failed" error in The Lord of the Rings Online launcher. This error can happen while updating the game through the launcher.<br /><br />To fix it, follow the steps,<br /><br />1. Go to the game installation folder<br /><br />If you play Lord of the Rings Online through Steam, the default game installation folder is located at "C:\Program Files (x86)\Steam\steamapps\common\Lord of the Rings Online"<br /><br />2. Delete "client_sound.dat"<br />3. Delete "client_sound_aux_1.datx"<br />4. Delete "patchcache.bin"<br />5. Start the launcher again<br /><br />Like and subscribe to support my work.
