I tried to install NOD32 on an instance of Windows Server 2008 R2 Beta, but the installer reached the point of "Starting Services" and hung. After several minutes it reported that the erkn service failed to start and suggested checking if I had sufficient permissions to start a service. At the time I was logged in as a domain admin, and did have sufficient rights to start services. The Application log showed many instances of EventID 1000 with the following text (abbreviated) Faulting application name: ekrn.exe, version: 3.0.672.0, time stamp: 0x48a954a7 Faulting module name: kernel32.dll, version: 6.1.7000.0, time stamp: 0x4943402d Exception code: 0xc0000005 I have had NOD32 running flawlessly on a similar version of Windows Server 2008 (x64, Domain Controller, Terminal Server), so the most likely change is in the OS itself. Any suggestions on how to make NOD32 run on Windows Server 2008 R2 would be appreciated. Thanks.