Help with saving a config file etc

Hey guys im a little new to delphi, i need a little help with making a database prog in which when the program is run the first time it asks the user 'where is the database' located, when the file has been selected either from one the hard disk or a lan server, it saves the location of the file in a ASCII config file. When the prog is run the next time and so on it does not ask the user for the location of the database as it is saved in the config, only asks if its not found at that location anymore, basically a one time prompt at the first start, and again if the file is not found at the location.The second prob is i need to make this program a multiple instance type, so i can run it twice or how man ever times, so i can do a data enter from one console and the other to check the functionality. Im using delphi 6, any help would be appreciated as i have to submit it in a few days .

Thanks

Look up the help on the TIniFile object for storing and retrieving to an ini file.

You will have a multiple instance application by default.
You have to add code to force a single instance application.

Of course, it is up to you to make sure they do not walk all over each other

Clive