There is was a June 2006 update for DirectX9 and I downloaded it and when I try to install I get this error. I have Cryptographic Services enabled also. I don't know how to find the cabinet file and I don't know anything about certificates. HELP someone
My geuss is that if you aren't running a valid version of windows that some of your files were modified... just my geuss though.
I had that problem with the update, but the only way i got round it was installing BlackHawkDown a game, directx come with it version 9.. now i don't let it update.
Ya, I have always downloaded the redistrubutable version which is what they stick on cds for games etc.
Try uninstalling the whole of your Direcx's then download the one you need, (version 9 is best) then it should work.
If you are trying to install 9.0c and it isn't working thenyou can try to install 9.0b or a and see if it works...