This is only for Mathcad 8 users. Mathcad 2000 already have these items if downloaded. Soon will follow other Bundles. Unfortunately and in spite of many sheets being done in Mcad 8, 2000 to 8 conversion destroys usability of those using optimization. I sould have them elsewhere (CDR) but hard to believe that it may be, my CDR-ROM does not reads what it writes, so it may take me more than wished to deliver optimizers in 8 format. Will follow.