Bernd Klein wrote: > Thanks for all you help, but the real binary works under Solaris, so > I need to check it under this OS. Are there any memory-checkers > available under Solaris (5.9) As Eljay said, there's Purify: http://www-306.ibm.com/software/awdtools/purifyplus/unix/ Last I looked (when it was still Rational) it cost $2,800 or thereabouts for a unix licence. But we fixed all our bugs in the free trial period :-) Looks like they still offer a free trial :-) If you can't exploit that, I'd still check your code on linux - assuming you're running 32-bit code on Solaris there won't be a lot of changes in your memory management code. Rup.