[Windows Phone 7 Software Development] sabata:
You're right, some settings & apps aren't present in the image, others can be accessed from a PC custom app through the "Microsoft.SmartDevice.Connectivity.dll" assembly (you can see the Damir Dobric Posts).

Code example:

//...
DatastoreManager dsManager = new DatastoreManager(CultureInfo.CurrentCulture.LCID);
Platform platform = dsManager.GetPlatforms().FirstOrDefault();
Device device = platform.GetDevices()[1];
device.Connect();
var myAppToStart = device.GetApplication(new Guid("5B04B775-356B-4AA0-AAF8-6491FFEA5605"));
myAppToStart.Launch();
device.Disconnect();
//...

Valid GUIDs are (from blacklist):

"{5B04B775-356B-4AA0-AAF8-6491FFEA5600}" ;Shortcut

"{5B04B775-356B-4AA0-AAF8-6491FFEA5602}" ;Say It

"{5B04B775-356B-4AA0-AAF8-6491FFEA5603}" ;Calculator

"{5B04B775-356B-4AA0-AAF8-6491FFEA5604}" ;SystemInfo

"{5B04B775-356B-4AA0-AAF8-6491FFEA5605}" ;About

"{5B04B775-356B-4AA0-AAF8-6491FFEA5607}" ;Phone Lock Settings

"{5B04B775-356B-4AA0-AAF8-6491FFEA5608}" ;Keyboard

"{5B04B775-356B-4AA0-AAF8-6491FFEA5609}" ;Speed Type

"{5B04B775-356B-4AA0-AAF8-6491FFEA560A}" ;Alarms

"{5B04B775-356B-4AA0-AAF8-6491FFEA560B}" ;Brightness

"{5B04B775-356B-4AA0-AAF8-6491FFEA560D}" ;Sounds

"{5B04B775-356B-4AA0-AAF8-6491FFEA560F}" ;Gesturebester

"{5B04B775-356B-4AA0-AAF8-6491FFEA5610}" ;Text

"{5B04B775-356B-4AA0-AAF8-6491FFEA5611}" ;Call History

"{5B04B775-356B-4AA0-AAF8-6491FFEA5612}" ;Calendar

"{5B04B775-356B-4AA0-AAF8-6491FFEA5614}" ;Email

"{5B04B775-356B-4AA0-AAF8-6491FFEA5615}" ;People

"{5B04B775-356B-4AA0-AAF8-6491FFEA5616}" ;AccountsManager

"{5B04B775-356B-4AA0-AAF8-6491FFEA5617}" ;Word Mobile

"{5B04B775-356B-4AA0-AAF8-6491FFEA5618}" ;Excel Mobile

"{5B04B775-356B-4AA0-AAF8-6491FFEA5619}" ;PowerPoint Mobile

"{5B04B775-356B-4AA0-AAF8-6491FFEA561A}" ;SharePoint Mobile

"{5B04B775-356B-4AA0-AAF8-6491FFEA561B}" ;OneNote Mobile

"{5B04B775-356B-4AA0-AAF8-6491FFEA561C}" ;Call Settings

"{5B04B775-356B-4AA0-AAF8-6491FFEA561D}" ;OfficeURL

"{5B04B775-356B-4AA0-AAF8-6491FFEA561E}" ;OfficeHub

"{5B04B775-356B-4AA0-AAF8-6491FFEA561F}" ;Cell Settings

"{5B04B775-356B-4AA0-AAF8-6491FFEA5620}" ;Bluetooth Settings

"{5B04B775-356B-4AA0-AAF8-6491FFEA5621}" ;~Flightmode

"{5B04B775-356B-4AA0-AAF8-6491FFEA5622}" ;~Office Mobile Settings

"{5B04B775-356B-4AA0-AAF8-6491FFEA5623}" ;~Wifi Settings

"{5B04B775-356B-4AA0-AAF8-6491FFEA5624}" ;~Speech Settings

"{5B04B775-356B-4AA0-AAF8-6491FFEA5625}" ;~Find My Phone

"{5B04B775-356B-4AA0-AAF8-6491FFEA5626}" ;~Backup Settings

"{5B04B775-356B-4AA0-AAF8-6491FFEA5627}" ;~OBExParser

"{5B04B775-356B-4AA0-AAF8-6491FFEA5628}" ;ZIPView Mobile

"{5B04B775-356B-4AA0-AAF8-6491FFEA5629}" ;~SoftAP

"{5B04B775-356B-4AA0-AAF8-6491FFEA5630}" ;Zune

"{5B04B775-356B-4AA0-AAF8-6491FFEA5631}" ;Camera

"{5B04B775-356B-4AA0-AAF8-6491FFEA5632}" ;Pictures

"{5B04B775-356B-4AA0-AAF8-6491FFEA5633}" ;Marketplace

"{5B04B775-356B-4AA0-AAF8-6491FFEA5634}" ;Games

"{5B04B775-356B-4AA0-AAF8-6491FFEA5635}" ;Picture Camera CPL

"{5B04B775-356B-4AA0-AAF8-6491FFEA5640}" ;~Device Update Settings

"{5B04B775-356B-4AA0-AAF8-6491FFEA5641}" ;Device Update

"{5B04B775-356B-4AA0-AAF8-6491FFEA5642}" ;Location Settings

"{5B04B775-356B-4AA0-AAF8-6491FFEA5643}" ;SensorView

"{5B04B775-356B-4AA0-AAF8-6491FFEA5661}" ;Maps

"{5B04B775-356B-4AA0-AAF8-6491FFEA5664}" ;Maps Settings

"{5B04B775-356B-4AA0-AAF8-6491FFEA5700}" ;Convert

"{5B04B775-356B-4AA0-AAF8-6491FFEA5672}" ;StartKITL

"{5B04B775-356B-4AA0-AAF8-6491FFEA5673}" ;UIF

"{5B04B775-356B-4AA0-AAF8-6491FFEA5800}" ;TraceViewer

"{200E76A8-FE52-4ce9-A125-BB999A5C6A7D}" ;zSound Tool

"{08180483-59DD-419b-B938-B7082424D69A}" ;WLID Setup

"{9E768141-CAA9-4a4b-AF61-F47571CAD44A}" ;perfx

"{5B04B775-356B-4AA0-AAF8-6491FFEA5665}" ;AppChecker