Or company president had ESET 4.0 installed on his Windows XP machine but would get errors every 4 or 5 hours saying that ESET had crashed. So we decided to try your new version to see if: 1. It would stop the issue 2. If it did continue to crash give us an idea of why It has since crashed giving the following error: "ESET Service Error signature szAppName: ekrn.exe szAppver: 18.104.22.168 szModName: mswsock.dll szModVer: 5.1.2600.5625 offset: 0001b2fa" I also have the associated files if someone from support needs the *.mdmp and appcompat files. Any ideas on why this would happen?