What is Delivery Manager?

Hello bujeau,

Thank you for using Microsoft Windows forum.

You are probably running Kontiki, a peer-to-peer file-sharing service used by TV companies such as the BBC, Sky and Channel 4 to distribute video. Right-click on the Vista Taskbar and select the Task Manager. Check the tabs to see if you are running KService.exe or Khost.exe in the background. Removing the Kontiki software should solve the problem. However, if you want to keep your TV on-demand service, you will have to reinstall it.

This is a known issue and there are many users experiencing this issue with a trid party program. See the following links with similar issue.

http://social.answers.microsoft.com/Forums/en-US/vistaprograms/thread/47bb7f09-e9d5-4a9d-b3e2-a659a83b6c1f
http://social.answers.microsoft.com/Forums/en-US/vistaprograms/thread/0c91e482-e682-467b-86b5-200b3958642b
http://social.answers.microsoft.com/Forums/en-US/vistaprograms/thread/caa94cfd-c8b6-4fa1-97bb-c7df129171f6
http://social.answers.microsoft.com/Forums/en-US/vistaprograms/thread/d58962c9-2877-4491-b404-c6f25c43bf02
http://social.answers.microsoft.com/Forums/en-US/vistaprograms/thread/0c91e482-e682-467b-86b5-200b3958642b/

Try performing clean Boot and check if that helps

To help troubleshoot error messages and other issues, you can start Windows Vista or Windows 7 by using a minimal set of drivers and startup programs. This kind of startup is known as a "clean boot." A clean boot helps eliminate software conflicts.

Note When you perform a clean boot, you may temporarily lose some functionality. When you start the computer as usual, the functionality returns. However, you may receive the original error message, or you may experience the original behavior.

Follow the below steps to put your computer in clean boot state:

Note If the computer is connected to a network, network policy settings may prevent you from following these steps. We strongly recommend that you do not use the System Configuration utility to modify the advanced boot options on the computer unless a Microsoft support engineer directs you to do this. Doing this may make the computer unusable.

1. Log on to the computer by using an account that has administrator rights.

2. Click Start button, type msconfig.exe in the Start Search box, and then press ENTER to start the System Configuration Utility.

If you are prompted for an administrator password or for confirmation, type your password, or click Continue.

3. On the General tab, click Selective Startup, and then click to clear the Load startup items check box. (The Use Original Boot.ini check box is unavailable.)

4. On the Services tab, click to select the Hide all Microsoft services check box, and then click Disable all.

Note Following this step lets Microsoft services continue to run. These services include Networking, Plug and Play, Event Logging, Error Reporting, and other services. If you disable these services, you may permanently delete all restore points. Do not do this if you want to use the System Restore utility together with existing restore points.

5. Click OK, and then click Restart.

Check the below link for more details on clean boot:
http://support.microsoft.com/kb/929135

After you have finished troubleshooting, follow these steps to reset the computer to start as usual:

1.    Click Start button, type msconfig.exe in the Start Search box, and then press ENTER.
If you are prompted for an administrator password or for confirmation, type your password, or click Continue.

2.     On the General tab, click the Normal Startup option, and then click OK.

3.    When you are prompted to restart the computer, click Restart.


Regards,
Azeez Nadeem - Microsoft Support