Do I need to rename my COB cobybook extentions to use them with Net Express?

Problem:

No, add COPYEXT"CPY,COB"  directive to the Project | Properties | Project directives.

After adding this directive use the Project | Update all dependency to update the project.

Be sure that you have only one semi-colon as the last entry within the Project directives

%FILENAME COBIDY(%TARGETDIR) WB3 WB

CSI ANIM EDITOR(MF2) ENSUITE(3)

COPYEXT"CPY,COB"

Resolution: