Pocket PC phone is designed to store call information and contacts on your device, not the SIM Card. HTC SIM Manager lets you view the contents of your SIM Card, transfer your SIM Card contacts to your device and make a call to contacts in your SIM Card.
Features :
- Calling Contacts from your SIM Card
- Creating a Contacts on your SIM Card
- Transferring All SIM Card Contacts to your Device
- Saving Personal Number
Source : 
htc.com
Note :
Copy the exe file to the windows folder. If u have an older version try to kill SIM Manager app by any task manager then copy it.
=== DOWNLOAD===
More Windows Phone Apps :
Forward Contacts : an easy way to fwd contacts on WP7
Business Card Reader Concept for Windows Phone
Battlefield 3 Wallpapers for Windows Phone
Mehdoh : my new favourite Twitter client
Chris B
bAN01TgAZ
Stephen
Jeff
Logan Nowak
jasdeep
Mihai Ionescu
Ben Somorin
Philipp
Jesus
{ 2 comments… read them below or add one }
i m really impress by the features of this mobile software HTC sim manager 6.45. this software has wonderful in use such as Calling Contacts from your SIM Card, Creating a Contacts on your SIM Card, Transferring All SIM Card Contacts to your Device, Saving Personal Number etc. i must buy this software because it is very helpful to maintaining the list of contact in mobile phone
———————————-
Saijo George : Its a great application and best part is its Free
Thankyou