C#: What is the best way to identify Access databases?

Question

Programming

I do service which has to work with Access bases.
The user can upload new databases to the repository, download existing databases from the repository and modify them, and then return them.
For each Access database, an entry is created in the database service, where the path and storage location are indicated.
Actually the question is: How can I better organize the identification of Access databases in order to understand: "So this database is new, I will create a line on it, but this database is old, I must update it"?
Identification by name is not an option.
I have an idea to create a hidden table and write Id from the database there.
In this case, you will have to use interopt (To create a hidden table), and I do not like it
. Maybe there is something better that can be used for identification?

Answer 1

The Access database has "Properties", in which you can theoretically write your information, including identifiers, etc. Alternatively, you can start digging from here .