technical solutions and commentary

Installing TrendMicro AntiVirus onto Windows Small Business Server 2003 Premium Edition with ISA Server configured fails. By dafult TrendMicro installs onto IIS using HTTPS on port 4343. Running ISA Server on SBS, prevents the use of non-standard ports for the HTTPS protocol, requiring TrendMicro to use port 443.

To work around this issue and allow non-standard HTTPS ports in ISA Server, Microsoft has instrucitons on creating new tunnel ports in the TechNet Article “Managing Tunnel Port Ranges” and also as information in KB283284. You can copy the script samples and modify them to add a Tunnel Port for port 4343. This script can be run before or after the TrendMicro installation and will then allow access to the TrendMicro management console and allow clients to connect to install TrendMicro software