THIS WORKED FOR ME ON NEW SPRINT 6.5
Originally Posted by
Boo Boo 
does my way make it hidden again? at least with sprint. maybe telus has other settings
Tethering - tested and works
1 - using file explorer go to Windows\Start Menu\Programs - delete internect connection sharing
2 install - ICS_and_WModem_Fix cab
3. using a regedit program
[HKEY_LOCAL_MACHINE\Comm\InternetSharing]
Extension="" Delete the "isext.dll" entry
[HKEY_LOCAL_MACHINE\Comm\InternetSharing\settings]
ForceCellConnection="Sprint"
[HKEY_LOCAL_MACHINE\Comm\InternetSharing]
MaxCMCon=0
[HKLM\Services\CMGuardian]
Flags = 4 (it's a DWORD Value. if it doesn't exist. you need to create it)
4 - soft reset
5 - Start the Internet Sharing application.
6 - Select Sprint under type of connection.
7 - Hit Connect In the Internet Sharing application.
8 - Connect to the Laptop/PC via USB
9 - Done. No other applications needs to run on the PC/Laptop.