There are multiple ways to automate tasks like that. In the examples below, you will have to replace the “c:\path\to\pascal\compiler.exe” with the appropriate compiler and supply appropriate command-line arguments if it requires more than just the source code.

1. Using Notepad++ Run > Run, type a command similar to

    cmd /k "c:\path\to\pascal\compiler.exe ^"$(FULL_CURRENT_PATH)^" && ^"$(CURRENT_DIRECTORY)\$(NAME_PART).exe^""
   

   You can hit the SAVE button to put it in the Macro menu, and optionally give it a keyboard shortcut

2. Using the NppExec plugin, there are a few ways:

   1. Output to an “NppExec Console” sub-window inside the main Notepad++ window:

      Select Plugins > NppExec > Execute..., and use the command

       cd "$(CURRENT_DIRECTORY)"
       "c:\path\to\pascal\compiler.exe" "$(FULL_CURRENT_PATH)"
       "$(CURRENT_DIRECTORY)\$(NAME_PART).exe"
      

   2. Output to an “NppExec Console” sub-window inside the main Notepad++ window, keeping a cmd.exe prompt active in that window:

      Select Plugins > NppExec > Execute..., and use the command

       cd "$(CURRENT_DIRECTORY)"
       "c:\path\to\pascal\compiler.exe" "$(FULL_CURRENT_PATH)"
       cmd /k "$(CURRENT_DIRECTORY)\$(NAME_PART).exe"
      

   3. Output to a separate cmd.exe window:

      Select Plugins > NppExec > Execute..., and use the command

       cd "$(CURRENT_DIRECTORY)"
       npp_run cmd /k "c:\path\to\pascal\compiler.exe ^"$(FULL_CURRENT_PATH)^" && ^"$(CURRENT_DIRECTORY)\$(NAME_PART).exe^""
      

3. There’s probably a way to do it with the PythonScript plugin as well