| 2020-06-11 10:32:52 | ltk_tscc | Updated Heiko's credit on MidiWiz 1.1I: Text, Code, Graphics |
| 2020-06-11 10:29:06 | ltk_tscc | Updated Heiko's credit on MidiWiz 1.1F: Text, Code, Graphics |
| 2020-06-11 10:27:14 | ltk_tscc | Updated Heiko's credit on MidiWiz 1.1E: Text, Code, Graphics |
| 2020-06-11 10:25:53 | ltk_tscc | Updated Heiko's credit on MidiWiz 1.0: Text, Code, Graphics |
| 2020-06-11 10:24:14 | ltk_tscc | Updated Heiko's credit on MidiWiz 1.0C: Text, Code, Graphics |
| 2018-12-16 11:07:23 | ltk_tscc | Added credit for Heiko on MidiWiz 1.1I: Code, Graphics |
| 2018-12-16 11:06:52 | ltk_tscc | Added credit for Heiko on MidiWiz 1.0: Code, Graphics |
| 2018-12-16 11:06:37 | ltk_tscc | Added credit for Heiko on MidiWiz 1.0C: Code, Graphics |
| 2018-12-16 11:05:31 | ltk_tscc | Added credit for Heiko on MidiWiz 1.1F: Code, Graphics |
| 2018-12-16 10:42:28 | ltk_tscc | Updated Heiko's credit on MidiWiz 1.1E: Code, Graphics |
| 2018-12-16 10:40:51 | ltk_tscc | Set location to Korntal, Regierungsbezirk Stuttgart, Baden-Württemberg, Germany |
| 2018-12-16 10:18:16 | ltk_tscc | Updated Heiko's credit on DBA Magazine #11: Text (Articles) |
| 2017-08-02 07:48:10 | ltk_tscc | Set real name |
| 2017-08-02 07:47:38 | ltk_tscc | Added credit for Heiko on MidiWiz 1.1E: Code |
| 2014-07-18 20:37:55 | ltk_tscc | Set location to Germany |
| 2013-06-18 09:19:39 | ltk_tscc | Added Heiko as a member of The Members of Good Taste |