Message-ID: <390369915.1753.1430004284172.JavaMail.email@example.com> Subject: Exported From Confluence MIME-Version: 1.0 Content-Type: multipart/related; boundary="----=_Part_1752_834765338.1430004284172" ------=_Part_1752_834765338.1430004284172 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Content-Location: file:///C:/exported.html
The CheckedHelloPanel acts like the HelloPanel, displaying a welcome message including project name, the version, the URL as w= ell as the authors.
For Windows, it also scans the Windows registry for an entry that determ=
ines whether the product is already installed. For this purpose, the elemen=
in the <info> element =
of the installation definition file, in the for
$appName $appVersion (divided by =
a space character).
If the product was previously installed installed, a dialog will be show= n which asks whether to install a second version of the product or not.
If you use this panel do not forget to add the COIOSHelper registry feat= ure into your installation, see Windows Registry Access for more details.
See also Regi= stryInstallerListener / RegistryUninstallerListener for getting an idea= how this information in the registry can be created during an IzPack insta= llation and deleted during uninstalling.