Utility to build axf-files from hex/binary

Hi,

i know fromelf.exe to get hex or binary files from an axf file. But i need a program to build an axf file out of an hex file (or bin). background: i use uVision to load program via jtag, so i need an axf file. but i want to manipulate some date before loading. so i generate an hex file, but now i need to get the axf back out of the hex-file.