can't run halo pc on windows 10

[Abridged]

i get the error that says We are sorry, but you need to have DirectX 9.0b installed to run this program and none of the compatibility packs work and i cant download directx 9.0c because the installer wont let me

 

[popatim]

I believe you just need the full download
http://www.microsoft.com/en-us/download/details.aspx?id=8109

You run this at your own risk, naturally. Good Luck.