BIS - Black Berry Internet Service = email service provided by the respective carrier; Air tel, Aircel, Verizon, Vodafone, etc, etc...
BES - Black Berry Enterprise Server = email service provided by a server ran by a company. For example by your employer..
To install the East Asian language pack, complete the following steps:
From the wireless service provider's website, download the BlackBerry Device Software for the BlackBerry smartphone that includes the East Asian language pack. For example, BlackBerry Device Software 4.6.0.298 (East Asia).
Open BlackBerry Desktop Manager.
Select the application loader tool.
Open Add/Remove Programs. At this point BlackBerry Desktop Manager confirms if the BlackBerry Device Software version which is installed is specific to the wireless service provider that the BlackBerry smartphone was purchased from.
From the Device Application Select screen, locate East Asian Language and Input Support.
Select the language you want to install.
Click Next. The installation will begin.
Once the BlackBerry Device Software is installed, on the BlackBerry smartphone, complete the following:
Go to Options.
Under Input Language, select the language that was installed.
Save your changes.
Compose an email message to test the input language.
The Fix for this issue is to go into your Control Panel / User Accounts / Turn User Account On or Off / and then make sure the box is NOT checked where it says Use User Account Control to help protect your computer.