The registration key "accesssecurity" should be applied to resolve a security warning when launching Office Tools Professional stating the "Program.MDE" is a possible security warning. Once you have acquired the registry key, extract and apply on the workstation experiencing this security warning. Restart Office Tools Professional, the message should not reappear.

The accesssecurity registry key can be found in the following location:
[HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Access\Security]

Inside this registry key, create a new DWORD value named 'Level', set 'Base' option to 'Decimal' and set the value to '1'.

Another method to add this registry key is to create a .reg file.
To create this file, open Notepad and paste the following 3 lines into the window:

Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Access\Security]
"Level"=dword:00000001

Click 'Save As..', name the file 'accesssecurity.reg' and save it to your desktop. Once the file is saved, you should be able to run the file by double-clicking it. You will then be prompted with the message 'Are you sure you want to add the information in accesssecurity.reg to the registry?'. Click 'Yes'. Once you receive the message 'Information in accesssecurity.reg has been successfully entered into the registry', you are finished.