Certain tasks are by default run in the background. This frees up the user or other software to continue using the application while MT does important tasks, for example rebuilding. However, this feature does not work in some hosting environments. If you find that some features are not taking effect, try setting LaunchBackgroundTasks to 0.
Note: This setting is currently incompatible in persistent environments such as mod_perl, FastCGI. and PSGI