Starting with Windows Vista, Microsoft does not support DDE on a network anymore. However, you can create DDE links on a local computer.
A one-time data transfer, also called a "cold link", lets you bring data into Minitab that are not automatically updated when the original data change. You can use this DDE command in place of copying and pasting, or in any type of macro. This dialog does not generate session commands in the Session window.
For a one-time data transfer, it is often easier just to copy and paste the data, rather than using DDE.