Backup upstream version of POL_Install_msxml3 function
POL_Install_msxml3: use POL_Download_Resource
Backup upstream version of POL_Install_vcrun2005 function
POL_Install_vcrun2005: use POL_Download_Resource
Backup upstream version of POL_Install_vcrun2008 function
POL_Install_vcrun2005: fix download directory
POL_Install_vcrun2008: use POL_Download_Resource