How to set Datasource property of mdb Database location or path automatically during form Loading

Hi,

I have done  a windows application project in C#.NET.
I want to set  Datasource  property of mdb Database location or path automatically during form Loading. So that when i will create a MSI for my project and wiil be installing on different System, then it will take the database path automatically and set the path regardless your mdb Database is  residing on any drive. I will not be using App.Config file for setting the DataSource property.
                                     
                                      Please, help me.
I need it as soon as possible