There are two solutions that will disable the Activation process:
Solution One:
Delete or rename the file activation.dll found in:
C:\Program Files\Netscape\Netscape 6\components
Solution Two:
Go to C:\Program Files\Netscape\Netscape 6\defaults\pref folder.
Open the all- ns.js with Notepad and find the following entry:
pref("browser.registration.enable", true);
change to false, as shown below:
pref("browser.registration.enable", false);