After some reports of problems with the windows package of KLog 0.9.7.2, I have just updated the installer.
The problem was caused because the previous installer was including a wrong version of the SQLite Qt library.
It is fixed now.
If you had some problems with the 0.9.7.2 Windows version, please uninstall KLog completely and install with the new installer that is in the download page.
I hope you enjoy KLog!