| 2020-10-10 06:37:17 | sensenstahl | Edited notes |
| 2020-10-10 06:36:39 | sensenstahl | Edited notes |
| 2020-10-10 06:33:47 | sensenstahl | Updated link http://www.sensenstahl.com/untergrund_mirror/bbs/professional_software_exchange_bbs1a.zip |
| 2020-10-10 06:33:42 | sensenstahl | Set title to 'Professional Software Exchange BBS (1a)' |
| 2018-12-03 16:46:09 | sensenstahl | Added link https://www.pouet.net/prod.php?which=79345 |
| 2018-12-03 16:45:26 | sensenstahl | Added 2 screenshots |
| 2018-12-03 16:45:18 | sensenstahl | Added production 'Professional Software Exchange BBS' |