The situation is pretty much the same with most programming languages. Variables are only held in the computer's working memory. Once you exit a program, they're discarded. Generally speaking it doesn't matter what type they are.
If you want them to persist between sessions then you need to store the information somewhere and retrieve it next time your program starts. Typical places to store data between sessions would be...
- Windows registry
- A text file
- A database
There are probably more exotic options (for instance, create a DLL which holds information for you in its address space and returns it when you call it later). But these are the main ones you'll probably want to consider.
Given that you're working in Access, a database table might be the simplest, since you already know the database is there. So why not create a new table, dump your information into it before exiting, and read it back on entry?