These files work better - they just disable the Sprint PCS connection rather than the Internet connection. That way WiFi still works:
vision-on.reg
Code:
[HKEY_LOCAL_MACHINE\Comm\ConnMgr\Providers\{7C4B7A38-5FF7-4bc1-80F6-5DA7870BB1AA}\Connections\Sprint PCS]
"Enabled"=dword:00000001
vision-off.reg
Code:
[HKEY_LOCAL_MACHINE\Comm\ConnMgr\Providers\{7C4B7A38-5FF7-4bc1-80F6-5DA7870BB1AA}\Connections\Sprint PCS]
"Enabled"=dword:00000000