About Application manager
Select Menu > Settings and Application mgr..
With Application manager, you can see the software packages installed in your
device. You can view details of installed applications, remove applications, and
define installation settings.
You can install the following types of applications and software to your device:
● JME applications based on Java™ technology with the .jad or .jar file extensions
● Other applications and software suitable for the Symbian operating system with
the .sis or .sisx file extensions
● Widgets with the .wgz file extension
Only install software that is compatible with your device.