I have been looking for a solution for VST instrument hosts, and this is what I have found so far:
1) V-Stack. Possibly the best solution (I have not tried it but I know others who are using it ok), however it has a requirement of Windows 2000 or XP. My target does not have this. It does allow multi-midi inputs and multi-VSTi I am told. http://www.steinbergusa.net/Products/V_stack.htm?sid=0
2) Chainer. Probably an ideal solution except it is not a multi-midi input application. This fix is supposed to be in the works. Windows only. http://www.xlutop.com/index.html
3) Spin Audio ASIO FX Processor SE. Interesting, but only loads one VST instrument. Windows only. http://www.spinaudio.com/downloads_trial.html#asiofxpse
4) Plogue Bidule. VSampler shows up in the instrument list, but not Kontakt. I did not play with it enough to get any sound out of it. http://www.plogue.com/e_soft.html
5)VSTiHost. Something for you Mac people. Only hosts one VSTi. http://www.defectiverecords.com/vstihost/index2.html
6) Simple Virtual Host. I thought this was a winner. Hosts 4 VSTi, 12 VST in four chains of 4 slots, each slot with its own midi input, all more than enough for one system (64 tracks plus effects). Only problem, I could not get any sound out of it. Midi went in, the samplers were sending sound, but no sound on the output. Too bad. See www.kvr-vst.com get this. It may work for you. Or maybe I did something wrong. Freeware I believe.
Other thing I am still testing. Join the fun at http://www.kvr-vst.com/ , look at upper right hand corner for the \"Host Links\". I may have more to add later. Any other comments or ideas out there?
Just found something new. I downloaded it and tried it, and darned if it don\'t work! I think I am getting this one. Its called Console and its made in Japan. There is an english version and an english tutorial:
Now I like this one! Drag and drop components (midi in, VSTi [like Kontakt], VST, audio out...) onto the work area, drag connectors from the ins to the outs, hit \"Play\" and it works! I used MidiOverLan to control this, no problem. It even has CPU meters and a midi piano roll just for yuks, not to mention a virtual keyboard for the midi components. Nice. [img]images/icons/grin.gif[/img]