or temporarily disable your firewall/antivirus to see if it allows the file to load. Official Sources Developers : Download the full Steamworks SDK (currently v1.60) directly from the official Steamworks Partner Site
return manifest;
If you are an independent game developer using (or earlier builds like Multimedia Fusion 2), you have likely encountered the dreaded "Missing extension" error when trying to open a project. One of the most common culprits is steamworks.mfx .
