To create a debug log during the installation of a Windows application, complete the necessary steps for installing a Listed Application or Unlisted Application, but stop before clicking Install.

Click the 'eye' button to the right of Install and select Advanced Options.

Enter +seh,+tid in the Wine logging channels. (If you've used these channels before, you can click the plus and select the from the menu.)

CrossOver will save the log file at the path specified in Log file. If you want to change the location, enter a new path or click the button to browse to a new location. Otherwise, click Done.

Now, click Install and proceed with the installation process.