Hi Mark,
I found the problem.
I had installed a compression file called Stuffit. It changed the .bin file application type to 'Stuffit'. Therefore the firmware file was rejected as the applicationtype sent to utasker was stuffit.
It's great the way some companies decide that their application is so important that they have the right to change application types. NOT.
It does identify an problem that could occur with my customers. I'm thinking of changing the file extension of my firmware upgrade files to something unique.
Not sure how to find a unique 3 character extension though. Maybe there is a register or list some where.
Cheers,
Peter.