https://community.graphisoft.com/t5/Libraries-objects/AC11-Curtainwalls-do-not-open-in-AC13/m-p/160694#M20473 AC12 introduced a Curtain Wall tool, so I imagine the curtain wall objects are no longer in the AC12/13 Libraries. Download and load into your project the AC11 Migration library, the INT version can be found <A href="http://www.graphisoft.com/support/archicad/downloads/ac13/INT/" target="_blank">HERE</A> Sun, 20 Jun 2010 20:39:45 GMT Anonymous 2010-06-20T20:39:45Z https://community.graphisoft.com/t5/Libraries-objects/AC11-Curtainwalls-do-not-open-in-AC13/m-p/160693#M20472 <DIV class="actalk-migrated-content"><T>I am using AC after a long break, and found that the project i did in AC11 is opening in AC13 with missing curtain wall components.<BR /> I have missing library parts? Is there a link to download AC11 library parts?? <BR /> <BR /> My local Graphisoft support (in Bahrain) has not answered my email for over a month for support.<BR /> <BR /> Thanks and regards</T></DIV> Sun, 20 Jun 2010 13:16:17 GMT https://community.graphisoft.com/t5/Libraries-objects/AC11-Curtainwalls-do-not-open-in-AC13/m-p/160693#M20472 Anonymous 2010-06-20T13:16:17Z https://community.graphisoft.com/t5/Libraries-objects/AC11-Curtainwalls-do-not-open-in-AC13/m-p/160694#M20473 AC12 introduced a Curtain Wall tool, so I imagine the curtain wall objects are no longer in the AC12/13 Libraries. Download and load into your project the AC11 Migration library, the INT version can be found <A href="http://www.graphisoft.com/support/archicad/downloads/ac13/INT/" target="_blank">HERE</A> Sun, 20 Jun 2010 20:39:45 GMT https://community.graphisoft.com/t5/Libraries-objects/AC11-Curtainwalls-do-not-open-in-AC13/m-p/160694#M20473 Anonymous 2010-06-20T20:39:45Z