http://forum.ppcgeeks.com/showthread.php?t=114806
- Enable USB Teathering -
1. Go to: [HKLM\Services\CMGuardian]
2. Create a new DWORD Value called "Flags" and set the value data to "4"
(if it is already there then skip)
3. Softreset
4. Go to: [HKEY_LOCAL_MACHINE\Comm\InternetSharing]
5: Delete the "isext.dll" entry
6. Go to: [HKEY_LOCAL_MACHINE\Comm\InternetSharing\settings]
7. Change "ForceCellConnection" from "PhoneAsModem" to "Sprint"
8. Softreset
Then plug USB cable into phone and PC. The phone should pop-up a menu - select internet modem. Internet sharing will appear on the phone and Status should display "connected".
Surf from your laptop.