i followed all the steps but still couldn't get succeeded, and facing " HTTP Error 502.5 - Process Failure " issue and in event log " application 'machine/webroot/apphost/webnosource' with physical root 'e:\nopcom42\' failed to start process with commandline 'e:\nopcom42\nop.web.exe ', errorcode = '0x800700d8' : 0."