Error 0x80070095

Value: -2147024747 | 0x80070095 | 2147942549

What does it mean ?

ERROR_IS_SUBST_TARGET  
An attempt was made to join or substitute a drive for which a directory on the drive is the target of a previous substitute.
Value: 149 | 0x0095 | 0b0000000010010101

Where does it come from ?

FACILITY_WIN32  
Provides a way to handle error codes from functions in the Win32 API as an HRESULT. (Error codes in 16 - bit OLE that duplicated Win32 error codes have also been changed to FACILITY_WIN32)
Value: 7 | 0x007 | 0b00000111

Other Errors for FACILITY_WIN32