New: D3dx3 30dll
A “new” d3dx3_30.dll doesn’t mean a higher version number. It means a fresh, uncorrupted, Microsoft-signed copy of version 9.18.944.0000 . As long as you stick to official Microsoft distribution channels, you’ll never have to worry about this error again.
To summarize, if you’re seeing an error related to d3dx3_30.dll : d3dx3 30dll new