What's going on again with that silly Impulse program done mainly for players ???
Just wanted to update WB7 from V6.90 beta.097 to V6.90 beta .099 and Impulse is telling me "your registration number is not valid ..."
I had the same problem, if you use the "Install all updates" button under the help icon it should install for you.
Before seeing your post, i did a full uninstall of Impulse, then reboot, then re-install it with the full installer, then reboot, then uninstall WB7, then reboot, then it installed correctly WB6, then reboot, then trying to get the WB7 update and ... back to the silly message ...

BTW, thanks very much for your tip, it worked also for me
(i hate that Impulse crazy kinda program
), but now i get troubles when verifying other programs installation such as "MyColors" for instance ... (detected as not correctly installed and asking for update to correct the problem, update which doesn't solve anything ... )
AAAarrrggggggggggggg i hate it i hate it