If the installer itself is corrupted but the raw archive is fine, you can bypass the problematic unarc.dll entirely.
The most common cause is the installer running out of memory while decompressing large game files. Open via the Windows search bar. how to fix unarc dll returned an error code 6 fifa 13 link
Error -6 often masquerades as a “corrupt archive” when the problem is actually . FIFA 13’s installer requires a massive contiguous chunk of RAM for decompression. If your pagefile is too small, the decompressor fails. If the installer itself is corrupted but the
FIFA 13 is an older game (2012). Many "links" available today are hosted on unstable file-sharing servers. A single corrupted byte in a 6GB+ archive will trigger error -6. how to fix unarc dll returned an error code 6 fifa 13 link