Here is my working DSFL:
Code:
<app>
    <name>dsfl</name>
    <user_friendly_name>Drug Search for Leishmaniasis</user_friendly_name>
</app>

   <file_info>
      <name>wcgrid_dsfl_vina_6.25_windows_x86_64</name>
      <executable/>
   </file_info> 
   <file_info>
      <name>wcgrid_dsfl_vina_prod_x86_64.exe.6.25</name>
      <executable/>
   </file_info>
   <file_info>
      <name>wcgrid_dsfl_gfx_prod_x86_64.exe.6.25</name>
       <executable/>
   </file_info>

<app_version>
    <app_name>dsfl</app_name>
    <version_num>625</version_num>
    <platform>windows_x86_64</platform>
    <avg_ncpus>1</avg_ncpus>
    <max_ncpus>.125</max_ncpus>
    <api_version>6.25</api_version>
    <file_ref>
        <file_name>wcgrid_dsfl_vina_6.25_windows_x86_64</file_name>
        <main_program/>
    </file_ref>
    <file_ref>
         <file_name>wcgrid_dsfl_vina_prod_x86_64.exe.6.25</file_name>
          <open_name>AutoDockVina64.exe</open_name>
     </file_ref>
     <file_ref>
         <file_name>wcgrid_dsfl_gfx_prod_x86_64.exe.6.25</file_name>
          <open_name>graphics_app</open_name>
     </file_ref>
</app_version>