ZyXEL PLA-400 Firmware Upgrade Tool Date: October. 26, 2007 Supported Platforms: Windows XP, Vista 32 bit Firmware version: 8/16/2007 3.0.5 Known issue: Notes: 1. Please install .NET Framework 1.1 Redistributable before users use this utility. 2. The utility must be run from an ID with administrator privileges.