HTC Aria User Manual page 84

84 Accounts and sync
6. In the Application Installer file types dialog box, make sure that the Android OS installer
file (apk) check box is selected and then click OK.
This dialog box only appears the first time you use the Application Installer.
7. Click Next.
8. Click Browse, locate the application (.apk) on your computer, and then click Open.
9. After selecting the application, click Next.
10. Click Finish. Check your phone's screen to see if there are additional instructions to
complete the installation.