I've just posted a CodeProject article on GUISS.
You can view it by following this link: http://www.codeproject.com/KB/library/guiss.aspx
With this release of GUISS, I've added some (very necessary) security features. The documentation still isn't finished yet, so I recommend you take a look at the Demo Project.
I've implemented an early version of GUISS into Oblivion Savegame Manager. Search for OSgM here on sourceforge. You can take a look at the code of that to see how it's implemented there.
The last months have been very busy for me, but I managed make quite some progress on GUISS. The last week though, it became painfully obvious to me that the way GUISS skins forms now just isn't going to work. Luckily I haven't released anything yet, so I can start off with a clean sheet.
The new skinning strategy will consist of a DLL that contains all the forms. The so called Parent Application will be unaware of how the forms look like, but it can hook into all events on every control on the form. The demo application that shows this behaviour is close to being finished.... read more
In the following days I will be releasing an alpha version (0.1.0.0a) of GUISS. The release will be separated into the actual library, an editor and a demo application.