Regarding VC++ 6 being broken: What service pack are you using? There is a service pack 6 for VC++ 6. Most people only have sp5 or lower installed. -- Ian Malone wrote: Thu, 25 Aug 2005 06:30:19 -0700 (PDT) To: mpich-discuss@mcs.anl.gov Subject: Re: [MPICH] Can't compile against mpich2 with visual c++ 6 Yes, it works for me too now without MPICH_SKIP_MPICXX, thanks for the quick response. I'm happy to test things if that results in working code, and I appreciate that this problem is a symptom of VC 6 being broken. Unfortunately I don't have access to VC 2003, but I need to move my code to gcc for our cluster anyway. Anyway, thanks for your help.