I'm looking to check the ash accumulation in my DPF before deciding whether to replace it or not. I've used a cheap bluetooth reader to get the codes, but this doesn't give me more than codes, and I would like something more sophisticated that can reset the light and force regens, like this Autel device:

Autel MaxiCheck-DPF Special Appligation Diagnostics

The above is specific to the DPF though, it'd be nice if there was some laptop software that could do everything.