support building with VS2008 and SDK < 7.0 fixes issue 298
support building with VS2008 and SDK < 7.0
fixes issue 298

git-svn-id: fe3cd4388a6e5a968b09397a3d721fe124e8117a@179 5b54908e-ead4-fc18-b48a-0285e6dbc711

rnk/drmemory,rnk/drmemory,rnk/drmemory,rnk/drmemory