Hi I just installed HoMM 5 using the gog downloader and when I go to start the game i get
This application has failed to start because d3dx9_25.dll was not found. Re-installing the application may fix this problem.

I have re-installed three times already.
Anybody have a solution for this problem would be appreciate

You should download and install DirectX from Microsoft website. Look here for more details: http://www.gog.com/forum/heroes_of_might_and_magic_series/homm5_missing_d3dx9_25dll

Next time use search plz