https://community.intel.com/t5/Intel-Fortran-Compiler/Install-Compaq-Visual-Fortran-under-vista-64bit/m-p/903893#M81581 I tried to install the Compaq Visual Fortran under Vista 64bit, it can't start the installation, keep saying "the operation system doesn't supported". I have Intel Fortran but I need it to run some old codes. Anyway to make this work?<BR /> Fri, 23 Oct 2009 16:20:40 GMT truelies 2009-10-23T16:20:40Z https://community.intel.com/t5/Intel-Fortran-Compiler/Install-Compaq-Visual-Fortran-under-vista-64bit/m-p/903893#M81581 I tried to install the Compaq Visual Fortran under Vista 64bit, it can't start the installation, keep saying "the operation system doesn't supported". I have Intel Fortran but I need it to run some old codes. Anyway to make this work?<BR /> Fri, 23 Oct 2009 16:20:40 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/Install-Compaq-Visual-Fortran-under-vista-64bit/m-p/903893#M81581 truelies 2009-10-23T16:20:40Z https://community.intel.com/t5/Intel-Fortran-Compiler/Install-Compaq-Visual-Fortran-under-vista-64bit/m-p/903894#M81582 <DIV style="margin:0px;"></DIV> Run the setup.exe in the "x86" subfolder of the install CD. You will also need to start Visual Studio "as Administrator".<BR /> Fri, 23 Oct 2009 16:56:21 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/Install-Compaq-Visual-Fortran-under-vista-64bit/m-p/903894#M81582 Steven_L_Intel1 2009-10-23T16:56:21Z