Noisebud has released Slow, a mastering compressor effect plug-in for Windows.
Slow is a RMS based leveling amp / compressor aimed for mastering but it can be very handy in production as well. Slow does not just reduce the gain when the level is above a threshold, it will also increase the gain when the level is below. With the right settings Slow can be the most transparent compressor you heard on a heavy fluctuating material.
Its recommended use is just for even out the level of a whole track but try it for sculpting bass drums or compress vocals too, we tried it in lots of situation and got a bit amazed how well it performed.
Slow for Windows (VST) is available for purchase for “name your price” (starting at $3.30 USD).