You cannot just double-click the file. Follow these instructions to get DotA IMBA 387 AI Hot running:
Playing against the AI in this map requires a different mindset than normal Dota. download map dota imba 387 ai hot
Since the original hosts (Epicwar, GetDota) have changed over time, you need to be careful. Do not download from random ".exe" pop-ups. You cannot just double-click the file
Step-by-step: