Hi! All,<BR><BR> I have to make some changes in the existing system. The system is developed in Vb 6.0 and SQL-Server 7.0. No source code is available. By adding some field in to the some of the tables of in the database I have develop some of its module in VB 6.0. <BR><BR> What is my question is How I can make use of the existing database? Without affecting the daily as well as previous transactions. Then I cann't share it and use know. What shall I do? As well as How shall I proceed this project. What is the initial study I have to do? Expecting the suggesstions. <BR><BR>Thanks a lot.