Now that you have migrated to ArchiCAD 17, you may have projects from older version of ArchiCAD using the now historical Doors+Windows Builder 35.
Cadimage has released an Updrade Goodie for ArchiCAD 15, 16 and now for 17.
Log into the website and go to MyCadimage> Downloads> Goodies:
Download and install. (instructions attached in the file download)
This Ad On will upgrade your old Doors+Windows to ArchiCAD 16 Version.
However, if you open the settings of that door/window, you will only have to click upgrade to have a fully editable ArchiCAD 17 Cadimage Doors or Windows.
For more information about the latest version: