Thanks. That makes a certain amount of sense as long as no Registry entries get changed. (Any searches will follow the PATH environment variable to whatever executables & libraries are needed.) I noticed that in your example, you have GNAT on a drive labeled "D". (Usual installation being to the "C" drive, naturally.) Is it necessary to have them both on different drives? Or is this just a case of the way it happened to end up in your environment? MDC -- Marin David Condic Senior Software Engineer Pace Micro Technology Americas www.pacemicro.com Enabling the digital revolution e-Mail: marin.condic@pacemicro.com Web: http://www.mcondic.com/ "Gerhard H�ring" wrote in message news:3ADDEEAA.D8F16935@bigfoot.de... > I have both the GNAT 3.13p compiler and a Cygnus compiler installed. > There is one only thing you must not forget: Whichever compiler you want > to use, put it at the front of the PATH. I have Cygnus GCC at the front > of the PATH. If I want to use GNAT, I have to do > > SET PATH=D:\ADA\GNAT\BIN;%PATH% or > export PATH=//d/Ada/GNAT/bin:$PATH > > depending on which shell I happen to use. Everything is working fine > then :-) > > Gerhard > -- > Sorry for the fake email, please use the real one below to reply. > contact: g e r h a r d @ b i g f o o t . d e > web: http://highqualdev.com