MPE can't USB connect to BlackBerry PRIV

[fidtheforce]

I am running MPE 1.8.7 on WIN7 Entreprise SP1, i have enabled USB debugging in the development menu of the BB Priv.
I have installed the lastest USB driver for blackberry: RIM-USBDrivers-4.2.0.117
The Device is properly recognized by WIN7, when it is USB connected to my laptop I can browse the internal memory of the phone, copy, paste, move, erase files.
ADB drivers are also installed, you can see them in the log below.

17:35:36.84 Refresh ComDescriptions...
17:35:36.84 PORT: COM9 Enumerator=BTHENUM Displayed=Standard Serial over Bluetooth link InstanceID=BTHENUM\{00001101-0000-1000-8000-00805F9B34FB}_LOCALMFG&0000\8&2410684A&0&000000000000_00000000
17:35:36.85 PORT: COM8 Enumerator=BTHENUM Displayed='PC-Sandrine' Bluetooth-Port InstanceID=BTHENUM\{00001101-0000-1000-8000-00805F9B34FB}_LOCALMFG&000F\8&2410684A&0&6036DD0DD332_C00000000
17:35:36.85 MODEM: COM3 Enumerator=HDAUDIO Displayed=LSI HDA Modem FriendlyName=LSI HDA Modem InstanceID=HDAUDIO\FUNC_02&VEN_11C1&DEV_1040&SUBSYS_103C3066&REV_1002\4&7E3101&0&0101
17:35:37.30 Error in StartFritzboxSearch: -2147023838 Automation error
The service cannot be started, either because it is disabled or because it has no enabled devices associated with it.
17:35:45.01 Device driver info:
17:35:45.04 Devices with ADB Interface: BlackBerry Android Composite ADB Interface
17:35:45.12 ADB Devices: BlackBerry Android Composite ADB Interface
17:35:45.12 Portable devices: BlackBerry STV100-4
17:35:45.12 Unknown devices: Keyboard_Filter_01
17:37:47.68 RunADBCommand: start-server
17:37:47.76 ADB CommandResponse:
17:37:47.76 RunADBCommand: devices
17:37:47.82 ADB CommandResponse: List of devices attached
17:37:47.83 Connect to Android failed!
17:37:47.83 bOpened=False
17:37:47.83 No device attached to USB

Did i forget something?