Xtoolui.dll

Do not delete xtoolui.dll if you actively use legitimate XTool hardware – this will break the diagnostic software.

In the vast majority of cases, this file belongs to X-Tool , a utility often associated with Borland or Embarcadero software development tools (specifically Delphi or C++Builder). It is often categorized as a "Property Sheet Extension" or a resource library for developer tools or specific Windows utilities. xtoolui.dll