Tools93ToolsApplication managerPress , and select Tools > App. mgr.. You can installtwo types of applications and software to your device:• J2ME™ applications based on Java™ technology withthe extension .jad or .jar ( ).• Other applications and software suitable for theSymbian operating system ( ). The installation fileshave the .sis or .sisx extension. Only install softwarespecifically designed for your Nokia N76. Softwareproviders will often refer to the official model numberof this product: the Nokia N76-1.Installation files may be transferred to your device from acompatible computer, downloaded during browsing, orsent to you in a multimedia message, as an e-mailattachment, or using Bluetooth connectivity. You can useNokia Application Installer in Nokia Nseries PC Suite toinstall an application to your device. If you use MicrosoftWindows Explorer to transfer a file, save the file to acompatible memory card (local disk).Install applications and softwareindicates a .sis application, a Java application,that the application is not fully installed, andthat the application is installed on the memory card.Important: Only install and use applications andother software from trusted sources, such as applicationsthat are Symbian Signed or have passed the Java Verified™testing.Before installation, note the following:• To view the application type, version number, and thesupplier or manufacturer of the application, selectOptions > View details.To display the security certificate details of theapplication, in Certificates, select View details. See‘Certificate management’, p. 101.• If you install a file that contains an update or repair toan existing application, you can only restore theoriginal application if you have the original installationfile or a full back-up copy of the removed softwarepackage. To restore the original application, removethe application, and install the application again fromthe original installation file or the back-up copy.