I’m a .NET developer with limited exposure to Domino/Notes.
I had a simple question, but I fear the answer may be complicated!
I want to know if it is possible to check if a user has access to a Notes/Domino 8.5 document if you know:
a) The notes URL (eg, notes://database.nsf/0/324908239084190841?OpenDocument)
b) The users Notes canonical name (eg, cn=bob.smith/ou=brazil/o=acme)
Is it possible using COM or .NET to call an API with these two paramaters and check if the user can access (read) a document?
My Microsoft orientated mind is lost in this Notes world! 
Cheers,
Ben