Question Details:

1. After I install a software in a folder all I see after install is a 65kb system file.
2. Can I replace DirectX 9.0b with DirectX 9.0c Redistributable on my computer with internal video RAM?

Answer:

1.It could be that your computer is infected with viruses. We suggest to go here and to download AVG Free Antivirus which is a very good tool to remove viruses.

If you want to can try also to scan your computer with an online antivirus without installing anything on your computer. Here is a list of the best online scanners.

2. Yes you can. You can download DirectX 9.0c Redistributable from here.

To completely uninstall DirectX 9.0b you can use DirectX Happy Uninstall.