https://community.graphisoft.com/t5/Installation-update/Cant-install-MEP-modeler-on-archicad-18/m-p/205717#M21855 <DIV class="actalk-migrated-content"><T>help i cant install mep modeler on archicad <BR /> it displayed this error even though the app is not running<BR /> im running windows 8.1</T></DIV><BR /><IMG src="http://community.graphisoft.com/t5/image/serverpage/image-id/72384i5451D95414003C12/image-size/large?v=v2&amp;px=999" border="0" alt="2014-09-02 06_57_33-MEP Modeler for ArchiCAD 18 Installation.png" title="2014-09-02 06_57_33-MEP Modeler for ArchiCAD 18 Installation.png" /> Mon, 01 Sep 2014 23:59:40 GMT Anonymous 2014-09-01T23:59:40Z https://community.graphisoft.com/t5/Installation-update/Cant-install-MEP-modeler-on-archicad-18/m-p/205717#M21855 <DIV class="actalk-migrated-content"><T>help i cant install mep modeler on archicad <BR /> it displayed this error even though the app is not running<BR /> im running windows 8.1</T></DIV><BR /><IMG src="http://community.graphisoft.com/t5/image/serverpage/image-id/72384i5451D95414003C12/image-size/large?v=v2&amp;px=999" border="0" alt="2014-09-02 06_57_33-MEP Modeler for ArchiCAD 18 Installation.png" title="2014-09-02 06_57_33-MEP Modeler for ArchiCAD 18 Installation.png" /> Mon, 01 Sep 2014 23:59:40 GMT https://community.graphisoft.com/t5/Installation-update/Cant-install-MEP-modeler-on-archicad-18/m-p/205717#M21855 Anonymous 2014-09-01T23:59:40Z https://community.graphisoft.com/t5/Installation-update/Cant-install-MEP-modeler-on-archicad-18/m-p/205718#M21856 What happens if you restart your computer, then try to install MEP Modeler as the first thing you do? At that point ArchiCAD is definitely not running. Fri, 05 Sep 2014 17:17:41 GMT https://community.graphisoft.com/t5/Installation-update/Cant-install-MEP-modeler-on-archicad-18/m-p/205718#M21856 Laszlo Nagy 2014-09-05T17:17:41Z