Revoking Licenses

The RevokeLicense function is used to revoke a previously generated license. These are its parameters:

Parameter	I/O	Description
Email	in	OEM-licensed Company’s e-mail
OEMKey	in	OEM License Key.
Serial	in	Serial number to revoke.

This function will return one of the following error codes:

Code	Description
0	No error. The license was revoked.
-1	General error in license server.
-2	Incorrect Email or OEMKey.
-3	Incorrect Serial number.
-4	Incorrect Serial number.
-5	General error. Cannot revoke license.
-10	Invalid response received from license server.
-20	Malformed response received from license server.
-50	Error in HTTP request.
-100	General error in library.
-101	Application invalid: not digitally signed.
>200	HTTP status code.

Here’s how to revoke a license using Delphi:

procedure RevokeLicense;
var
    result: Integer;
begin
    result := RevokeLicenseW(PChar('OEM_EMAIL'), PChar('OEM_KEY'), PChar('SERIAL_NUMBER'));
    // Check result
end;

And here’s how to revoke a license using C#:

private void RevokeLicense()
{
    int result = RevokeLicenseW("OEM_EMAIL", "OEM_KEY", "SERIAL_NUMBER");
    // Check result
}

Note: Please replace ‘OEM_EMAIL’ and ‘OEM_KEY’ with your Company’s OEM registration information, and replace ‘SERIAL_NUMBER’ with the Serial to revoke.