You can find a mask at "Main menu"->"Others"->"Diagnosis"->"Project infos". In the line "Project" you can see the program. If it says e.g. Biogas_Waage_5_ZOLL_SD.pro, i.e. that's the right link:
Biogas_Waage_5_Zoll_With_SD_V_2012_01_04_exe

Example:

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