The file refers to a specific version of the popular Blender rigging addon, hosted on the VFX resource site Vfxmed . About Auto-Rig Pro v3.67.25
Enhanced compatibility for complex character setups being moved into game engines. Download File Auto-Rig_Pro_v3.67.25 vfxmed.zip
You can typically find the download entries for this tool on Vfxmed , which often hosts archives of Blender addons. The file refers to a specific version of
Better tools for retargeting motion capture data to existing rigs. Accessing the File Download File Auto-Rig_Pro_v3.67.25 vfxmed.zip