This configuration variable applies only to the thin client automatic update feature. During the automatic update installer file download process, a progress dialog appears. You can cancel the download at any time from this dialog. The Cancel push button is disabled immediately after the user clicks it, the description line in the middle of the dialog box disappears, and the message specified in this configuration variable appears. The default value for this variable is

Please wait while the download is being cancelled . . .

See Download Progress Dialog Box for more information about this variable.