HAM-LOG is a versatile program for logging QSOs and more.
It can be configured to nearly all requirements.
 
...auch in Deutsch

20 MAR 2010: Current Version = 3.41

The software is for free. No registration required.

Support is limited now.

24 JAN 2018: New Prefix files

(Added Z6 Kosovo 21 JAN 2018, KH4 Midway and KH7 Kure island reactivated)

 

13 APR 2018: New IOTA table

(Added SA-099, SA-100, Deleted AN-014, EU-155)

23 JUN 2018: New DOK table

2018 Arthur Schwarz DJ6LS, Web-Design: Newmediamen