GO and download again. Stats Posts 4 Stroke 26, Date Added 10y Date Modified 10y. Getting error playing with offline bots,it saying in your file has invalid signature…. Failed to load the launcher DLL A Forum Thread for Counter-Strike: Mods Craftings Effects Game files GUIs Maps Scripts Skins Sounds Sprays Tools."Failed to launch the launcher dll" Edit: Also try using the File -> Launch CS:GO dialogue instead, there can go less wrong with that one. Top. This bug tracker is not for CS:GO, just our older Source titles. Dialog box titled "Launcher error" with text "Failed to load the launcher DLL. CS:GO Failed to load the launcher DLL. I've got this error after the format computer. I try remove Bin folder and verify integrity of game cache.