Thanks for that. But I'm only interested in PPC executables and I thought InternalLoadSeg() would have been a much better solution than the work-around I'm considering... I've had no trouble using LoadSeg() with PPC programs so I figure first, allocate a 16MB block of memory, go through the remaining memory list and allocate everything, release the first block and then just use LoadSeg() to get those two executables into the same space. Not nice but it'd probably work.