ClozureCL (ccl) works on Windows. There is just one issue - the 32-bit version works fine on 32-bit machines, but not on 64-bit ones (this is due to something

ClozureCL (ccl) works on Windows. There is just one issue - the 32-bit version works fine on 32-bit machines, but not on 64-bit ones (this is due to something int he CCL kernel, relying on the TLB settings, it's being done through undocumented Windows functions). A 64-bit CCL works fine on 64-bit machine (Tested on my Vista 64 Business edition) And a 32-bit one also works fine on a 32-bit machine (tested with XP Home edition) I myself decide to stay more with Lispworks 6.0 for a while, because supporting more than one lisp seemed hard to me (this way I can totally use the Lispworks FLI, and not bother about CFFI and others). Later if the project seems worth anything, it could be ported. A cool experiment, and rather bizzare one, is using the Cocotron (Cocoa on Windows and Linux) with CCL (I think the 32-bit one). But it's a bit tricky to get it working - you need to compile Foundation.dll and AppKit.dll and place them in the right folders. The cool thing about CCL - is the people :) I actually donated $1000 for the CLL project (they were in $20000 to develop the GUI)