Application managerWith Application manager, you can see the software packages installed in your device.You can view details of installed applications, remove applications, and defineinstallation settings.You can install two 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 withthe .sis or .sisx file extensionsOnly install software that is compatible with your device.Install applications and softwareYou can transfer installation files to your device from a compatible computer, downloadthem during browsing, or receive them in a multimedia message, as an e-mailattachment, or using other connectivity methods, such as Bluetooth connectivity. Youcan use Nokia Application Installer in Nokia PC Suite to install an application to yourdevice.Select Menu > Ctrl. panel > App. mgr..The installation files are in the Installation files folder, and installed applications in theInstalled apps. folder.Icons indicate the following:.sis or .sisx applicationJava applicationApplication installed on the memory cardImportant: Only install and use applications and other software from trustedsources, such as applications that are Symbian Signed or have passed the Java Verified™testing.Before installation, note the following:• To view the application type, version number, and the supplier or manufacturer ofthe application, select Options > View details.To display the security certificate details of the application, select View details.• If you install a file that contains an update or repair to an existing application, youcan only restore the original application if you have the original installation file ora full backup copy of the removed software package. To restore the originalSecurity and data management 155