If anyone has a scanner or receiver with a discriminator tap (EDIT: DISCRIMINATOR TAP NOT A REQUIREMENT, APPARENTLY - SPEAKER OUT WORKS FINE) and would like a nice and simple software-based CTCSS decoder, check this link:
I inquired at RR if such software was available after a Google came up empty, and I was pointed to this. Works quite well, but is in its early stages of development. I've e-mailed the author and asked if he might consider including DCS decoding capability at some point.
If anyone knows of any other software based CTCSS/DCS decoders (other than Wintone) I'd be interested. Thanks.