In Windows 2003 some of the image paths of processes retrieved with
GetModuleFileNameExW —mainly coming from early start— come prepended with
Quoting from Windows Internals (Page 147 in 4th edition):
Windows subsystem DLLs prefix names passed by Windows applications that reference objects in \DosDevices with \?? (for example, C:\Windows becomes \??\C:\Windows).
An incomplete list of well known but strange system process paths in Windows 2003 is listed below:
Long path overrides that allow 32768 characters to be used by the internal API (Unicode, or Wide char) are "
\\?\", they should not be confused with a DOS path: "