DAS requires the presence in the working directory - WD, of several files and sub-folders containing the configuration files and the system files for the execution of the application. In the WD, besides the executable DAS.EXE, the following files are necessary:

1. DCL.DLL, DTA.DLL and WINDRVR.VXD, the libraries for the Camera management
   
2. DSCUD51.DLL, the library for the AD converter management
   
3. WSC32.DLL, the library for the Stepper Motor's drivers
   
   • And also the sub-directory:
     
4. \CCD ' Definition files for the CCD sensors
   
5. \CCDIMG ' Pictures of the CCD sensors
   
6. \CONFIG ' Configuration files for DAS Application
   
7. \DATA ' Directory where the measured spectral data are stored
   
8. \DCL ' System files for the DTA Camera Library
   
9. \DILSYS \SYS and \VIIMG ' System file for the graphics libraries
   
10. \HP ' Configuration Files for the CCD Driver
    
11. \LOG ' LOG file for the offline analysis of the spectrometer performance
    
12. \DOAS ' Configuration files for DOAS Algorithms
    
13. \HELP ' Help directory