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DDE Share\windows\system32\ddeshare.exe

Facilitates Dynamic Data Exchange (DDE) communication over a network.

To Open

Command Prompt ddeshare

Description

Dynamic Data Exchange is a mechanism that allows one application to send instructions to another. DDE Share extends this functionality by facilitating this communication across a local network, using theNetDDE protocol. NetDDE is a cross-platform tool, capable of communicating with applications on Windows, DOS, OS/2, Solaris, VMS, and HP/UX systems.

When you start DDE Share, you'll see a simple window with a menu and two unlabeled icons. The two icons correspond to the first two entries in the Shares menu: double-click the icon with the hand holding the blank window to display the DDE Shares window, or double-click the icon with the hand holding the "checked" window to display the DDE Trusted Shares window.

Notes

  • The NetDDE service must be running on both machines. (See the Microsoft Management Console, later in this chapter, for more information on services.)

  • One of the two computers assumes the role of server, and the other assumes the role of client. On the server machine only, DDE shares must be created; these shares work similarly to shared folders and printers (see Chapter 6), where a particular resource is given a "share name." In the case of Microsoft Chat, this is already done (shared as Chat$).

If the required entries are not present, you'll need to create them. Unfortunately, DDE conversations are proprietary; that is, the commands involved are decided by the application developer, so you'll have to refer to the documentation that comes with a particular application you're using to determine what type to use in the DDE Share dialogs.

  • Once the shares have been established, the client machine must be set up to use the share from the server. For example, if you're using Chat and the server machine is named Karl, the service/topic pair would be \\Karl\NDDE$ and Chat$, respectively.

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