Windows Mobile Device Security Models

There are 7 different security models of a Windows Mobile phones:

1. Locked
2. Security Off
3. Third Party Signed Two Tier
4. Third Party Signed One Tier
5. Prompt Two Tier
6. Prompt One Tier
7. Custom

Depends on the security model, applications (whether signed or unsigned) may be blocked from executing, or a prompt may be shown before the application can run.

To change the security configuration:

1. Use Device Security Manager, available from Tools menu in VS2008, or as an add-in for VS2005.

2. If Device Security Manager cannot work due to strict security configuration, use a tool such as SDA Application Unlock

3. If (1) and (2) cannot work, modify registry using a signed tool. Under HKLM\Security\Policies\Policies change the following values:

Data for "1001" should be set to 1 (hex)
Data for "1005" should be set to 40 (hex)

Reboot the device and try (1) and (2) again.

Reference:

Device Security Configuration Overview, http://msdn.microsoft.com/en-us/library/bb384144.aspx

http://www.mvdirona.com/jrh/SmartPhone/AppAndSimUnulock.htm