39. Retrieve an instance of the FileSystemInfo class. Retrieve an instance of the DriveInfo class. Retrieve the drive capacity by using the DriveInfo.TotalSize property. Determine if the drive is available by using the FileSystemInfo.Attributes property. Retrieve the drive numbers of all logical drives by using the DriveInfo.GetDrives method. Retrieve the drive capacity by using the FileSystemInfo.Attributes property. Actions, select from these Actions, place here Place first, if any Place second, if any Place third, if any Place fourth, if any Place fifth, if any Place sixth, if any Retrieve the drive numbers of all logical drives by using the DriveInfo.GetDrives method. Retrieve an instance of the DriveInfo class. Retrieve the drive capacity by using the DriveInfo.TotalSize property.
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41.
42. Add code to the default constructor of the Service class to monitor the free space on the hard disk drive. Add code to the OnStart method of the Service class to monitor the free space on the hard disk drive. Add an instance of the System.Windows.Forms.Timer class to the service class and configure it to fire every minute. Add an instance of the System.Timers.Timer class to the service class and configure it to fire every minute. Add code to the OnStart method of the Service Class to start the timer. Add code to the Elapsed event handler of the timer to monitor the free space on the hard disk drive. Actions, select from these Actions, place here Place first, if any Place second, if any Place third, if any Place fourth, if any Place fifth, if any Place sixth, if any Add an instance of the System.Timers.Timer class to the service class and configure it to fire every minute. Add code to the OnStart method of the Service Class to start the timer. Add code to the Elapsed event handler of the timer to monitor the free space on the hard disk drive. Add code to the Tick event handler of the timer to monitor the free space on the hard disk drive. Place 7th, if any