I don't plan on supporting non-SSE2 hardware by default; usage is extremely low and it penalizes performance for everyone else with modern hardware.
I've produced a one-off build that shouldn't require SSE2, although I have no mechanism to verify it and future builds will require SSE2.
http://valera-ext.ny...ols-NonSSE2.zip
You should consider upgrading to more modern hardware.
Does someone still have a NonSSE2 version kicking around? Not a big deal, since I do most work on other machines, but I still use the stand-alone compiler on an old junker when I don't have access to them.
The speed jump on that overclocked XP-3200 box is amazing with nwntx by the way (literally 10x faster or more for opening large areas), and thanks so much for the aabb plug-in as well.
