How to do "diff" with local files on Windows

[AxelPetermann]

None of the following commands worked:

rustic.exe --repository %repo_rustic% --password-file %pwdfile% diff --only-identical 5f1d4829 "D:\test"
rustic.exe --repository %repo_rustic% --password-file %pwdfile% diff --only-identical 5f1d4829 "D/test"
rustic.exe --repository %repo_rustic% --password-file %pwdfile% diff --only-identical 5f1d4829 "D\test"
rustic.exe --repository %repo_rustic% --password-file %pwdfile% diff --only-identical 5f1d4829 "/D/test"

Could someone help me please