can anybody help me
I have developed an windows application for a market. It was tested and the result is bugs free. I have installed the application on the customer PC. Customer used it for one week and maintained 100 records in his database pertaining to his market. Now he comes to me after one week and ask for a change in the application.(ex:- adding one more text box control). Yes, i have developed the application with appropriate changes requested by the customer.
Now how shud I install the appliction on the customer side with out effecting his database or records.
How can i do it?
Thanks in advance.