Now I found and recommend this third party software called "GodswMobile Contacts Transfer" for Windows Mobile phone to transfer contacts to your laptop computer.
GodswMobile Contacts Transfer is a simple program designed for mobile phone running Microsoft Windows Mobile 5.0 or 6.0/6.1/6.5.
It can transfer contacts from cellphone to pc;Transfer both sim card contacts and outlook contacts;Transfer contacts to any other windows mobile phone;Transfer contacts customizer photos and ringtones;Manager contacts on pc.
In a word, you can backup and manage mobile contacts easily on your pc with GodswMobile Contacts Transfer.
GodswMobile Contacts Transfer
* Transfer both sim card contacts and mobile outlook contacts;
* Including an app for PC to view,add,delete,modify and print contacts;
* Restore contacts to any other windows mobile phones;
* Backup contacts as TXT file and CTS file;
* Backup contacts pictures and ringtones;
* Support unlimited contacts backup/restore;
* Support VGA and WVGA Screen (such as HTC Touch HD/2 and Diamond/2).
Google "Godsw Mobile Contacts Transfer" to free download a Contacts tool.