Bounty hunter :-)
I develop and sell ShellBoost, a component that allows developers to write Shell Namespace Extensions very easily using .NET languages. These extensions are out-of-process (.exe) so they don't crash Explorer and they follow Microsoft's hard recommendation to avoid injecting the CLR into Windows Explorer process.
I'm also developer of the free tool www.magnumdb.com, a "Magic Number" database. It contains about 350000 values and names, int, guids, IIDs, PKEY, strings, windows messages, etc. heavily used in Windows APIs. Type a value, it will return the corresponding constants, and vice versa.
I can also develop custom code (C#, C/C++, TypeScript, .NET, Database, Web, Desktop, Mobile, etc.) in any domain. Don't hesitate to ping me.