https://forums.autodesk.com/t5/installation-licensing-forum/getting-error-1609-when-attempting-to-install-autocad-lt-2014/m-p/5468221#M150920 <P>The error is coming up when it has failed the Directx software.&nbsp;&nbsp; The OS is Windows 7 64bit</P> Tue, 13 Jan 2015 19:31:30 GMT Anonymous 2015-01-13T19:31:30Z