I would like to see Speccy produce a list of the installed software together with the serial numbers for the software.
this should also be able to be printed out and saved to a file. A great time saving feature when you have to re-format and re-install all of your software
There are a number of freeware products already available which can get serial numbers from the registry so it should not be too difficult to incorporate
I've looked at SIW and the section "Licenses" which I assume you're referring to does not provide a full list of serials against all the legit applications I have installed on my computer.
As I have stated before, there is no set standard for storing registration data some of which is puposely encrypted to prevent theft so it's really up to the application like SIW to search only in known locations.
Because there's literally billions of applications you could download, install and register it's simply not feasible to expect Speccy or any other program to find them for you.
I've seen some programs use file only registration however the majority do use the System Registry but in various places and sometimes encrypted.
Most commercial software I use have encrypted serials in the registry or an encrypted and well hidden file on the hard disk which makes any serial extraction program completely useless.