surfactant surÂ·facÂ·tant (sÉr-fÄk'tÉnt, sÃ»r'fÄk'-) n. A surface-active substance. A substance composed of lipoprotein that is secreted by the alveolar cells of the lung and serves to maintain the stability of pulmonary tissue by reducing the surface tension of fluids that coat the lung.
The Microsoft Exchange Information Store service uses a database engine called Extensible Storage Engine (ESE), which is a transaction-based database technology. In some troubleshooting instances or when moving from mixed to native mode, you may need to restart the Microsoft Exchange Information Store service. Procedure. To restart the Microsoft Exchange Information Store service. On the Start menu, click Run, type services.msc, and then click OK. In the Results pane, find the Microsoft Exchange Information Store service. Right-click the service, and then click Restart.
You can use the computer's power button to restart. Press the button once and wait for the computer to shut down. Press the button again to restart. If your machine is frozen, press the hold the power button for five seconds.This action is known as a hard reset.n both Windows Vista and Windows 7, users may restart their computer through the Start menu using the following steps: 1  Click the Start orb in the lower left-hand corner of the Windows Desktop. 2  Locate and click the right arrow (shown below) next to the Shut down button. 3  Select Restart from the menu that appears.