Domino crash when running some agents

Hi,I reinstalled a new domino server 6.01cf2 on a new machine and recopied all necessary files

id, nsf ,…

When i run the new server ( win2000 server vs nt4 server ) some agents crashed the domino i received a NSD windows and domino close .

I tried many things reinstall from sractch in nt4 as it was before same result .Some of these agents use the lsx connector that was present in 5 but not in 6 so i decided to upgrade from a 5.012 to 6.01cf2 it works on nt4 bit same result on windows server after the upgarde the server crashed in the same agent …

What can cause that is it win2000 server incompatible with the old lsx connector …?

If anyone can help it would be very appreciate .

Olivier.