My system information unit has been updated to v5.11.0 The most important change is that the release fixes a compilation bug that affects versions of Delphi that don't support constant dynamic array declarations (which I think was introduced in Delphi XE7). Anyhow, I just tried and failed to compile v5.10.0 with Windows XE. And yes, I still use XE quite a lot. I also updated the operating system detection class TPJOSInfo : to detect Windows 11 Dev & Beta Channel releases that have come out since the last System Information Unit release. There's also a minor refactoring. You can get the new version from my website or direct from SourceForge (direct download link).