https://m.blog.naver.com/xinfra/80007894227

https://www.google.co.kr/search?safe=active&sxsrf=ALeKk02Wyzf2Ks9rWI3x3yMU00v3uN2-5A%3A1601762943009&ei=f_Z4X7AJp4yvvA-DrKTABA&q=com+idispatch&oq=com+idis&gs_lcp=ChNtb2JpbGUtZ3dzLXdpei1zZXJwEAEYADIECCMQJzIFCAAQywEyBAgAEB4yBAgAEB4yBggAEAgQHjoFCAAQsQM6AggAOgcIABAUEIcCOgcIABAKEMsBOgUIIRCgAVDXSVjlfWCQiwFoAHAAeACAAZkBiAG0CpIBBDAuMTCYAQCgAQHAAQE&sclient=mobile-gws-wiz-serp

https://digitz.tistory.com/303

https://www.codeproject.com/Articles/5037/Circular-Reference-proof-ATL-Object-Collections

https://www.google.co.kr/search?safe=active&sxsrf=ALeKk02jpeKaMXHiFcI7ib564voLlULN1Q%3A1601615486496&source=hp&ei=frZ2X726G9Hi-Aa8w4r4Dg&q=com.+component+object+model.+pc+%EB%A0%88%EC%A7%80%EC%8A%A4%ED%8A%B8%EB%A6%AC%EC%97%90+%EB%93%B1%EB%A1%9D%2F%EC%A0%9C%EA%B1%B0&oq=&gs_lcp=ChFtb2JpbGUtZ3dzLXdpei1ocBABGAAyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECdQAFgAYJEOaAFwAHgAgAEAiAEAkgEAmAEAsAEP&sclient=mobile-gws-wiz-hp

https://docs.microsoft.com/en-us/windows/win32/com/registering-com-servers

https://www.codeproject.com/Articles/505791/Writing-Simple-COM-ATL-DLL-for-VS2012