94Depending on the type of the other device, an application may be sent andinstalled on the other device to enable the data transfer.3. Select what content you want to be transferred to your device.4. Content is transferred to your device. The transfer time depends on the amountof data. You can stop the transfer and continue later.16. Data manager■ Application managerYou can install two types of applications and software to your device:J2METM applications based on JavaTM technology with the extension .jador .jar. PersonalJavaTM applications cannot be installed on your device.Other applications and software suitable for the Symbian operatingsystem. The installation files have the .sis extension. Only install softwarespecifically designed for your device.Installation files may be transferred to your device from a compatible computer,downloaded during browsing, or sent to you in a multimedia message, as ane-mail attachment, or using Bluetooth. You can use Nokia Application Installer inNokia PC Suite to install an application to your device or a memory card.After you install applications to a compatible memory card, installation files (.sis) remain inthe device memory. The files may use large amounts of memory and prevent you fromstoring other files. To maintain sufficient memory, use Nokia PC Suite to back up installationfiles to a compatible PC, then use the file manager to remove the installation files from thedevice memory. See "PC Suite," p. 85 and "File manager," p. 96. If the .sis file is a messageattachment, delete the message from the messaging inbox.To open App. manager, select Menu > Settings > Data mgr. > App. mgr..Install an applicationImportant: Only install and use applications and other software from trustedsources, such as applications that are Symbian Signed or have passed the JavaVerified TM testing.Before installation, in App. manager, scroll to the installation file, and selectOptions > View details to view information such as the application type, versionnumber, and the supplier or manufacturer of the application.