Geometry Shader

I write many geometry shaders,but can not be run.Is supported GS on Geforce7xxx or whether allowed to simulate GS effect with CPU?Cg2.0 or another software?

nope geforce 8xxx only

There is software you can get! NVemulate, which you can get at the NVIDIA developer website!

I load and enable the NVemulate as long time before,but the extension NV_gpu_program4 not supported also when I check the GPU information
use the GPUCapsViewer