Error 0x400D005B

Value: 1074593883 | 0x400D005B | 1074593883

What does it mean ?

NS_I_STOP_DISK  
A NetShow administrator at network location %1 stopped disk %2.
Value: 91 | 0x005B | 0b0000000001011011

Where does it come from ?

FACILITY_MEDIASERVER  
Windows Media Server
Value: 13 | 0x00D | 0b00001101

Other Errors for FACILITY_MEDIASERVER