2.6Ghz pentium 4 processor, 1gb RAM, GeForce 4200 Ti video card and a P4PE ASUSTeK. Do you need anything else?
The error is "Direct3D functionality not available. You should verify that the driver is a final version from the hardware manufacturer."
And Dota is a map, so it working without WC3 would be like a map on COD or something working without the actual program.