I think you should take advantage of the way that the Intermec devices natively handle CAB files. Create an Avalanche Support package that just drops the CAB file into the flashfilestore\cabfiles directory and you should be good to go.
Thanks. I have done exactly that - create support package using COPY cmd to get file into \flash file store\cabfiles and EXECUTE to get device to warm boot which then installs the actual cab.
Thanks for response.