If you install DigaBurn DVD by the included setup.exe you can choose a different directory than the base directory of DigaSystem. This could be useful because DigaBurn DVD comes with lots of small files which are placed inside the base directory of DigaBurn DVD.
If you choose a different folder please note that you need to copy DigaSQL.dll manually to this folder afterwards. On the other hand you can add the DigaSystem path to your Windows PATH variable which allows finding the DigaSQL.dll by other applications than those which are installed in the base directory.