https://community.graphisoft.com/t5/Archicad-C-API/Missing-Add-Ons-message/m-p/21308#M6990 I suspect this is caused by user data in the elevations. See my new post: <A href="http://archicad-talk.graphisoft.com/viewtopic.php?t=9584" target="_blank">Fixing old user data on elevations???</A> Wed, 22 Feb 2006 02:02:23 GMT Anonymous 2006-02-22T02:02:23Z https://community.graphisoft.com/t5/Archicad-C-API/Missing-Add-Ons-message/m-p/21307#M6989 <DIV class="actalk-migrated-content">Hello,<BR /><BR />I am in the process of upgrading to ArchiCAD 9 (have been for a while now). I'm finding that when I open a version 7 drawing I get a 'Missing Add-On' dialog appear.<BR /><BR />Under name it says 'Tamawood.APX', but my v9 addon - which is loaded and working - is also called Tamawood.APX. I don't want my users to accidently untick the 'Keep Data' checkbox as my new addon converts the data using an OldUserDataHandler.<BR /><BR />Both plugins have the same MDID resource and same filename.<BR /><BR />Can anyone tell me what exactly makes ArchiCAD 9 think that my addon is missing?<BR /><BR />Thanks,<BR />Adam</DIV> Mon, 07 Aug 2023 09:30:09 GMT https://community.graphisoft.com/t5/Archicad-C-API/Missing-Add-Ons-message/m-p/21307#M6989 Anonymous 2023-08-07T09:30:09Z https://community.graphisoft.com/t5/Archicad-C-API/Missing-Add-Ons-message/m-p/21308#M6990 I suspect this is caused by user data in the elevations. See my new post: <A href="http://archicad-talk.graphisoft.com/viewtopic.php?t=9584" target="_blank">Fixing old user data on elevations???</A> Wed, 22 Feb 2006 02:02:23 GMT https://community.graphisoft.com/t5/Archicad-C-API/Missing-Add-Ons-message/m-p/21308#M6990 Anonymous 2006-02-22T02:02:23Z