Hello all, A while ago I added an issue with fragmentation of the virtual memory. We discussed about it and that resulted in me doing 2 things. First I installed a hotfix I found on the following link: http://support.microsoft.com/default.aspx?scid=kb;en-us;883527 After a couple of days the warnings came back. So we looked further. Then we tried to change the "HeapDecommitFreeBlockThreshold" as explained in the next article: http://support.microsoft.com/default.aspx?scid=kb;en-us;315407 Again the warnings came back so we tried the following article and change the mentioned value to 196608: http://support.microsoft.com/default.aspx?scid=kb;en-us;266768 But the problem is still there. I hope someone can tell me what to do. I run out of possible solutions. Specs: Windows 2000 5.00.2195 Service Pack 4 2.883.104 kb RAM Exchange 2000 Version 6.0 (Build 6249.4: Service Pack 3) Thanks in advance!! Mark