Hi How Do I build boost libs with stlportstld dll of stlport when I build the debug versions of the boost libs. I do not want to use the stlportd versions . The command that I use for building boost is: jam "-sTOOLS=vc-8_0-stlport" "-sSTLPORT_VERSION=5.0.0" "-sSTLPORT_5.0.0_PATH=C:\SourceLibrary\STLport" "-sBUILD=debug release <runtime-link>dynamic <threading>multi <stlport-iostream>on on" install Manish Mangal Software Engineer atlas(r) search Partner for Results 206-816-8349 // phone mailto:t-Matt.Koch@AtlasSolutions.com Manish.Mangal@AtlasSolutions.com www.AtlasSolutions.com // web