1. Can Sound Solution process live audio?

Yes it can! Just download this plugin by Jasper Van Der Gronde and the game is done. Remeber to configure Line In to stream 44100 KHz stereo samples, on the contrary Sound Solution will not process anything! Due to Winamp audio buffering, there will be something like 500mS of delay between input and output audio. This is not due to Sound Solution which delays just 10-20mS.

Another tip: most of digital audio processors have an input automatic gain control which adjust the input level to prevent the input analogue to digital converter to clip. Since your PC card is not equipped with this part, it is wise to allow a, say, 10dB of headroom to prevent clipping.

Some users using Line In in conjunction with Winamp Shoutcast DSP 1.82 experienced issues. It seems that Shoutcast 1.82 always opens the soundcard even if it is configured to take winamp samples, so Line In cannot open it for reading. Since this "bug" is not related to Sound Solution or Line In, the only solution seems to use the previous Shoutcast version 1.8 which seems to be ok.

2. Will Sound Solution be available for other platforms (MAC,Linux, Olivetti Divisumma..)?

Sorry, but it is a miracle if i can write something for Windows... :)

I don't think so, but probably i will publish a small open source "baby" compressor so someone can port it to every O.S.

3. Will Sound Solution be ported to DirectX or VST or will it be transformed into a stand alone program?

For the first two, i would, but it is not in program for now, on the last i'm working.

..just check this