Star office 9 don't requires serial number during installation, neither activation after install (or other activation options phone, license file) ...The license number is registered through the initial download process and is attached to your profile (the one with which you used to log in)
So it seems user can freely download it and install it more than on 5 machines ?If you have a license attached to your profile, you can download the updates. There is a time limit on the original download. There is also an option in the program to register each installed copy with your profile.
I bought this Star office, but i don't get what update i should download:I always download the ZIP, extract, and run the installed file. The update installer seeks verification of previous version by checking for previous installation files before installation. Search the forum for more details.
a) from HTTP link (packed .exe file for installation) or
b) from HTTP link signed .JAR file ?