Emulators are actively maintained, whereas random "repacks" from torrent sites often crash or fail to launch on modern versions of Windows.
Because the game is delisted, there is no legitimate digital PC version for sale anywhere. This has created a vacuum. The only official remaining copies are physical retail DVDs from 2011 (which require a CD key that may be already used) or used console discs (PS3/Xbox 360). Download Captain America Super Soldier Pc Tpb
If you have a lower-spec PC, the Nintendo Wii version can be emulated using Dolphin. Emulators are actively maintained