the executable from GoogleBooksDownloader is taken from Pencil :-)
However you may use xulrunner-stub.exe from XULRunner. Mozilla writes
[1]:
With a precompiled XULRunner: use xulrunner-stub.exe to start your
application but rename it into MyApplication.exe. With XULRunner 1.9
this will make the desired name appear in the task bar (not with
XULRunner 1.8 however). Your application's icon can also be added to
this executable with a tool like
Resource Hacker. To change icon of specific window, see Window icons.
-- Pavel
I tried to do a lot of examples (and soon I will release a next
example application with CouchDB) and XULJet is not a big library. But
with the next release I will improve the documentation :-)
On-line information about XUL is on MDN, mainly here:
https://developer.mozilla.org/en/XUL_Reference
Cheers,
-- Pavel