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The CheckedHelloPanel acts like the HelloPanel,=C2=A0displaying a welcome message including=C2=A0project name, the version, the URL as w= ell as the authors.
For Windows, it also scans the Windows registry for an entry=
that determines whether the product is already installed. For this purpose=
, the elements=C2=A0
=C2=A0element of the installation definition file, in the for
If the product was previously installed installed, a dialog= will be shown which asks whether to install a second version of the produc= t or not.
If you use this panel do not forget to add the COIOSHelper =
registry feature=C2=A0into your installation, see Windows Registry Access for more details
See also=C2=A0RegistryInstallerListener / Regist= ryUninstallerListener for getting an idea how this information in the r= egistry can be created during an IzPack installation and deleted during uni= nstalling.=C2=A0------=_Part_297827_265584357.1368868858723--