If you have an older Nvidia card than 2007 which doesn't support CUDA then I'm afraid you're extremely out of luck because the first cryptocurrency (Bitcoin) was released 2 years later.
If you want to mine on AMD GPUs, which naturally don't support CUDA (but aren't old) then just use any miner that is made for them for the coin that you want to mine.

There's no software for mining on non-CUDA Nvidia GPUs.