Hi,

have you ever created or defined a .o files?, I do not know why some of subroutines files that remained unchanged in my ufile directory have now this file extension.I dont know what it means or how did I defined them. I would appreciate if you can tell me what are they for.

Thankyou

The .o (object) files are created by the compiler during the starlink process. Normally starlink deletes them when it has finished building the star executable. If you still have .o files in your ufile directory then you probably killed starlink part way through. You can delete them anyway. If you have the .o files but not the .f files, then it's time to panic - that would mean you've lost your subroutines.