Officially WebSphere Portal V6.0 is not supported onto Windows 7, but you can install it by changing the compatibility mode of the installer \W-Setup\dist\”winwpinstall.exe” to Windows XP.
1. Right click winwpinstall.exe, then click Properties > Compatibility.
2. Check the box “Run this Program in Compatibility mode for:” and select “Windows XP” from drop down.
Although for me the installation program hang while configuring the security. As I did not need the security to be enabled so I just skipped or canceled the setup at this stage. I can start/stop and perform other normal administration tasks after installation.