Avoid third-party or untrusted “shader” downloads that claim to install Pixel Shader versions—these are not legitimate. You do not download shader models separately; they are capabilities of GPU + driver.
While Pixel Shader is hardware, the software that controls it is DirectX. pixel shader 2.0 download windows 7 64 bit
If your hardware absolutely does not support Pixel Shader 2.0, you can attempt to use "SwiftShader." you can attempt to use "SwiftShader."