[
uuid(51C82175-844E-4750-B0D8-EC255555BC06),
version(1.0),
]
interface KMSServer
{
int RequestActivation
(
[in] int requestSize,
[in, size_is(requestSize)] unsigned char* request,
[out] int* responseSize,
[out, size_is( , *responseSize)] unsigned char** response
);
}