Please email supportdos@larian.com, with a description of the problem and the report.zip file generated by the
D:OS EE Analysis Tool (for Windows), for the host and client system
Extract the zip file somewhere and run the AnalysisTool.exe. When that loads, browse to the install folder (if it is not automatically detected), optionally run the tests first, and then generate a report (it will be saved in the same location as the Analysis Tool).
The reports will contain system and game information, as well as your saved games. To reduce the file size, the host can delete most of the saves from the zip, just leaving the two that crash and maybe the most recent working save, and the client can delete all saves.
You can add a couple CrashDump files to the report, or zip them together separately.