: The original version of Resident Evil 5 relied on GFWL, which is now defunct. While the Steamworks update removed this requirement, some versions still crash because they look for GFWL components. Installing a "GFWL disabler" or "XLIVE.dll" fix is a common community workaround.
Here is a feature profile for the file, structured as a technical analysis and a gaming overview. re5dx9.exe