We have developed an application in NT4 server and SQL7. We are now customizing this application for a new client, which we have been doing for several months already. Then just yesterday, I received the information that client’s IT manager has required that our application must run on W2K server and SQL2K. This was not in any of our previous discussions and only came out now. My question now is what is the best approach to handle this problem in case client’s IT manager insists on their requirement? In this case, I plan to request for an extended schedule, but my concern is that already many departments in client’s company expect system to be ready end of Sept. To port an application from NT4/SQL7 to W2K/SQL2K, how long would we need to test before we can be confident it is stable (the DB part is subcontracted, I need an independent opinion)? Thanks for any reply.