Excellent vst compressor plugin offered for free from smartelelectronix,
‘A simple and effective compressor with classic controls auto gain compensation and preamp to overdrive it.’
‘there’s a side-chain version for vst win32 too here with 3 inlets, the third one being the side-chain. Not all host will accept to load it because of this. However any decent modular host should do the job, and I think it’s also possible in more classical hosts using routing to effect capacities.’