ORA Database Error Messages ORA-09300: osncon: unable to connect, DPMI not available July 21, 2015 mpbod ORA-09300: osncon: unable to connect, DPMI not available Cause: Unable to detect the presence of DPMI Action: Restart Windows and retry Back to previous menu https://support.oracle.com/ http://www.oracle.com/ Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)