If you're looking to download the xwis.dll file, I recommend using a reputable DLL downloader and fixer tool. However, I must emphasize that downloading DLL files from untrusted sources can pose security risks. It's essential to prioritize caution and verify the legitimacy of the tool and the source.
as a standalone file; instead, it is included in official XWIS distribution packages or updates. RA2 Multiplayer Pack
xwis.dll must match your game:
: Download the pre-configured multiplayer versions of the games from the XWIS Downloads Section