The Log Viewer provides a list of activities when a session is opened, such as locating the font files, checking the mouse and keyboard inputs, checking the current version of X-Win32, errors, etc.
Start X-Win32. See Start X-Win32
In the tray, right-click the X-Win32 icon.
Mouse-over Support and then click Log Viewer, as shown below.
The X-Win32 Logs window opens, as shown below.