Hi, Yesterday I posted a message on the list asking for a procedure to install GFI MailSecurity on a two node Echange 2000 cluster with Windows 2000. Steve Moffat answered me and I followed the procedure http://kbase.gfi.com/showarticle.asp?id=KBID001516 <http://kbase.gfi.com/showarticle.asp?id=KBID001516> . My one is an active passive cluster, and I'm using the MailSecurity v8.1. But when I finish installing and configuring it in cluster administrator, the Exchange Information Store stops and don't start in neither of the nodes. Can somebody help me? Thanks in Advance Alexey Fernandez Suarez