How to Install Application to use the Desktop Manger .

First you download Desktop Manger for this link

http://in.blackberry.com/services/desktop/

Then follow below step .

Step 1

Connect your BlackBerry to your computer via the USB cable that came with it, or any USB cable that fits.

Start the Dekstop Manager.

Step 2

You have a few choices to select from here.

Click on Application Loader/Application.

Step 3

You should now see something like what you see above.

From this screen, click browse.

Step 4

After finding the alx file for the application, highlight it and click open.

Step 5

From here you should  now listed of Install Application the Action column.

Click Apply.

Step 6

You’re done!

You can now exit the Dekstop Manager and disconnect your BlackBerry.