I saw you posted a brand new thread on the same subject [getting DSD to run]. IMO that isn't a good idea and isn't fair to anyone who has helped you in the past. All of your previous dialog is in this thread, and anybody who might try to help you would benefit from reading the whole dialog.
If I may make a suggestion:
1. make a directory in C:\ called DSD
2. download the latest 1.6 binary from the web and save it in the C:\DSD directory
3. copy your cygwin1.dll file to c:\DSD
Why? Because it's a pain in the neck for you to have to open a DOS prompt and then type in c:\"Documents and Settings\Administrator\My Documents\DSD" (with quotes) . It's much easier to open a DOS prompt and type in cd\dsd
Also, did you ever bother to tell anybody what your audio source is? And what you're plugging it into? Are you using a scanner with a discriminator tap / radio with discriminator output? Are you using a DVB-T dongle? How are you getting the discriminator / raw baseband audio into your computer?
At this point in time I think it would be fair if you give us a complete picture...
1. Operating System / CPU type and speed
2. Audio source (discriminator tap / DVB-T Dongle / something else)
3. Are you using the latest windows DSD binary?
4. Do you have DSD and cygwin1.dll in a directory that is easily accessible ( ex: c:\dsd )
5. Have you set the default input device to be the device that your'e feeding the audio into?
6. What type of signals do you have access to for testing [P25 / TRBO / NXDN / Provoice]?
7. Are you absolutely positive that the signal you think is P25 / TRBO / NXDN / Provoice is actually one of those?