The file gsrld.dll is a Dynamic Link Library file associated with . Specifically, it is often tied to the Social Club component or the DRM (Digital Rights Management) layer of games like Max Payne 3.
Downloading DLL files from third-party "DLL Download" websites carries a risk. These files can be outdated or infected with malware. Always scan the file with a virus scanner before use.
In legitimate, Steam-purchased copies of Garry's Mod, this file does not exist. Its presence almost always indicates a modified, cracked, or pirated version of the game or another Source-engine title.