SCO Openserver Release 5.0.7 
          SCO OpenServer Release 6.0.0 
          UnixWare 7.1.4 

          I have a machine with one or more Multi Core CPUs. How many 
          Symmetric Multi Processor (SMP) licenses do I need to install to
          take advantage of the HT capabilities of the CPUs?

          Multi Core CPUs allows two or more series of instructions to run 
          simultaneously and independently on a single physical Intel or 
          AMD processor. With Multiple Cores enabled, the system treats 
          a physical processor as two or more ``logical'' processors. 
          Each logical processor is allocated a thread on which to 
          work, as well as a share of execution resources such as cache 
          memories, execution units, and buses.

          SCO require that for:

          - SCO OpenServer 5.0.7 and earlier releases
          - and UnixWare 7.1.3 and earlier releases 

          that you have an SMP license for each additional physical CPU 
          that you wish to use on your system. 

          SCO does not require that you have a license for logical
          CPUs/processors (assuming your version of SCO Operating 
          System supports logical CPUs).

          In January 2008 SCO announced that you no longer needed a 
          license for additional CPUs on OpenServer 6.0.0 and UnixWare
          7.1.4. To eliminate the need for additional CPU licenses on 
          SCO OpenServer 6.0.0 please see:

          http://www.sco.com/support/update/download/release.php?rid=319

          To eliminate the need for for additional CPU license on 
          UnixWare 7.1.4 please see:

          http://www.sco.com/support/update/download/release.php?rid=337
     

          Technical Article 126167: "What SCO Operating Systems support the Multiple Core 
          processor technology from AMD and Intel?" 

          Technical Article 126556: "How many SMP licenses do I need to purchase for an 
          Intel or Intel compatible Dual Core or Multiple Core CPU based 
          system?"

          Technical Article 111842: "How to check how many CPUs your system is licensed 
          to use?"