By default, the InstallShield will not update files that newer (have later dates) on the destination PC. Maybe Mylib.vcx modification adte has been changed somehow?
Is there a reason why class library is not included in EXE?

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>I have a project with my own library class Mylib1.
>For old application version I build Upgrade in InstallShield Express 5.0, which install upon the old version, run any exe and update the old files. The problem is that Upgrade does not update one of the more then 100 files: it is Mylib.vcx file (Mylib.vct always update).But it is happen just if the application was installed on Network.
>In Mylib I hold combo boxes, textboxes, containers, Command Buttons…
>Why Install Shield does not warning and what does it mains?