noun, Chemistry. 1. the univalent ion, NH 4 + , or group, NH 4 , which plays the part of a metal in the salt formed when ammonia reacts with an acid. ammonium nitrate is extremely common, and pretty dangerous, and also extremely useful.
1 Double-click the Allow users to connect remotely using Terminal Services policy. 2  Set the policy to Enabled, and then click OK. 3  Right-click My Computer and click Properties. 4  Click the Remote tab. 5  In the Remote Desktop section, click to clear Allow users to connect remotely to this computer, and then click OK.ou can also use the following procedure to disable Remote Desktop; however, if you use the preceding procedure, the following configuration is overridden: NOTE: Remote Desktop is disabled by default on Windows XP Professional. 1  Click Start, click Run, type gpedit.msc, and then click OK.
1 Remote Desktop cannot be disabled on the remote computer. 2  You can enable and disable Remote Desktop in the Remote tab of the System Properties dialog box. 3  The authentication options defined in the Remote Desktop Connection client cannot prevent a connection to the Remote Desktop server type.llowing Remote Desktop Connections. To configure a Windows Vista computer to accept Remote Desktop connections from other computers, you need to enable the feature in the Remote tab of the System Properties dialog box. To access this tab, first open the System Control Panel.