HRESULT 0x80072EF0 (WININET_E_INVALID

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Description:

The requested WinINet operation is invalid in the current state.

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WININET_E_LOGIN_FAILURE	WININET_E_OPERATION_CANCELLED

WININET_E_INVALID_OPERATION

WININET_E_INVALID_OPERATION is a WinINet HRESULT. It means that the application called a WinINet operation on an unsuitable handle or in an invalid sequence. For asynchronous work, a prior operation may still be pending.

What to check

Verify the documented order of session, connection, request, send and read operations for the API in use.
Check that the handle belongs to the expected type and has not already been closed or repurposed.
Serialize operations that are not permitted concurrently and wait for asynchronous completion before changing request state.

Microsoft: WinINet overview

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