Complete Unistall directions as per Netcentrics support
Here is the complete instructions from Netcentrics for uninstalling the software including the registry changes.
1. Be sure Outlook is closed and no longer in memory (open the task manager and be sure that OUTLOOK.EXE and MAPI32.EXE are not running).
2. Uninstall the Getting Things Done Outlook Add-in through the Add/Remove Programs in your control panel.
3. Delete C

rogram FilesNetCentrics
4. Delete C

ocuments and SettingsApplication DataNetCentrics
5. Open outlook and delete the settings folder in your mailbox (located right beneath sent items).
6. Open your registry by clicking Start, Run and typing Regedit.
7. Navigate through the file tree to find HKEY_LOCAL_MACHINE SOFTWARE Microsoft Office Outlook Addins and delete the GTD entry.
8. Reboot your computer
NOTE: This doesn't remove your processed messages, folders, or views. It only removes the toolbar, options page and help. You will have to remove those manually if you would like them removed (we did this so we didn't delete messages processed that you were interested in keeping.
Here are lists of folders and views installed that should be deleted (to do so, right click on the folder, click delete, and answer yes to the confirmation message):
Inbox@Action
Inbox@Deferred
Inbox@Waiting For
InboxSnooze
InboxSomeday
Settings
TasksSomedayed Project Tasks
Once the folders have been deleted, here are a list of views you can also delete (to do this open Views | Arrange by | Current View | Define Views, highlight the view to delete and click Delete):
CalendarActive Appointments (GTD)
CalendarActive Appointments by Project (GTD)
CalendarActive Appointments by Subproject (GTD)
CalendarActive Appointments by Completed (GTD)
CalendarDay/Week/Month/Tasks (GTD)
InboxBy Project and Subproject (GTD)
JournalBy Action (GTD)
JournalBy Project (GTD)
JournalBy SubProject (GTD)
TasksActive Tasks by Action (GTD)
TasksActive Tasks by Project (GTD)
TasksCompleted Tasks by Action (GTD)
TasksCompleted Tasks by Project (GTD)
Tasks Active Tasks by SubProject (GTD)
TasksOrdered Tasks by Project (GTD
To remove all custom Outlook fields created by the add-in:
Tasks
Task Fields ............... Field Type
Action Verify .............Text
Delegated To ...........Text
Folder .....................Text
GettingThingsDone ....Yes/No
GtdOrder .................Number
GtdConversation ......Text
LinkType ................ Text
Master Project ..........Yes/No
PalmPilot Category ....Text
Project ...................Text
Project Verify ...........Text
Somedayed Project ..Yes/No
Subproject .............Text
UniqueID ................Text
Appointments
Appointment Fields....Field Type
Folder .....................Text
GettingThingsDone....Yes/No
LinkType..................Text
Project.....................Text
Project Verify............Text
Subproject...............Text
UniqueID..................Text
Journal
Journal Fields...........Field Type
Action.....................Text
GettingThingsDone...Yes/No
SubProject...............Text
Project.....................Text
Snoozed Email
Email Fields...............Field Type
SnoozeCount...........Text
SnoozeUntil..............Date/Time
SnoozeBy................Text
Processed Email
Email Fields..............Field Type
Complete.................Yes/No
Deferred Date..........Date/Time
Delegated To...........Text
GettingThingsDone...Yes/No
Folder......................Text
Processed By............Text
LinkType..................Text
SubProject...............Text
ThisFolder................Text
Project.....................Text
Project Verify............Text
UniqueID..................Text