taken from fsd source

Code uses ObCreateSymbolicLink to create a symbolic link to \\Device\\BuiltInMuSfc
then launch a xex using XLaunchNewImage(path+name of xex, 0).

Works for hdd1, usb ecc but not for the OnBoardMU...
Can someone tell me where is the problem?

Thanks in advance

finded the solution by myself

the right mount point is:
\\Device\\BuiltInMuUsb\\Storage

...in case it could be useful to someone else