Error 0x80010011

Value: -2147418095 | 0x80010011 | 2147549201

What does it mean ?

RPC_E_CANTCALLOUT_AGAIN  
There is no second outgoing call on same channel in DDE conversation.
Value: 17 | 0x0011 | 0b0000000000010001

Where does it come from ?

FACILITY_RPC  
RPC subsystem
Value: 1 | 0x001 | 0b00000001

StackOverflow

Other Errors for FACILITY_RPC