With the coming switch in Germany from Bank account number and banking sort code (BLZ) to IBAN and BIC, there are quite some tasks to accomplish. One task is to convert the bank account numbers to the new IBAN number.
DTAUS with C#
I needed to export Lastschriften (instructions for direct debit) for our german office, and after looking for some solutions, I realised that it is not that hard to write it yourself… Here is the result: http://download.pokorra.de/coding/Dtaus.csPlease feel free to use