Hi The problem reported in '6286 sprintf malfunction?' seems to be a more general problem: I guess that I can't have a code size more than 64k. How to break this limit? I have read, that the 80C166 does not support the HLarge memory model, is this correct? Why this limitation? Why does the IDE/compiler/linker not complain when selecting this memory model? Which libraries (C167T.lib...C167HL.lib) are supported by the 80C166? Thanks for any response