SWI-Prolog -- dde_execute/2

Documentation
- Reference manual
  - Built-in Predicates
    - Windows DDE interface
      - DDE client interface
        
        open_dde_conversation/3
        
        close_dde_conversation/1
        
        dde_request/3
        
        dde_execute/2
        
        dde_poke/4
- Packages

dde_execute(+Handle, +Command)

Request the DDE server to execute the given command string. Succeeds if the command could be executed and fails with an error message otherwise.