Hi Everyone, Have had problems installing the NOD32 2.5 administrator program to our server. Our old antivirus was InoculateIT, which I uninstalled. Install to Win2000 SP4 Server (Domain Controller) with MS SQL 2000/ISA Server/Exchange running. The installation does not complete and Hangs on the "installing Nod32 please wait" screen I initiate taskmanager after 5 minutes and find that it is "Not responding". This was tried on E:\. I decided to reboot and see what the problem is. After reboot NOD is not running and there are no services for it. Seems it gets so far into the install and does not complete. Some but not all of the required files are installed. I tried the install therafter on C:\ with the same results. I decided to check and see if it may be a problem with that specific Server Install to Win2000 SP4 Server with MS SQL 2000 running. I installed NOD32 to another Win2000 SP4 server with the same exact result and that was after re-downloading the installer. Both Servers have SQL Server running, could that be the problem? Also do I need to go through the registry to remove old antivirus keys (if there) I installed NOD to windows XP fine even with the old AV running!