Hi there ^^ I'm delphi coder actually I used to deal with simillar jobs just like the one you have mentioned like database driven applications using the latest engines like Unidac,Firedac,ADO,bde,zeos,Dbexpress and so forth working with most common RDBMSs assuming that DBISAM is a replacement of the BDE engine it would easier to handle besides it supports internal db system ^^ and for bug fixing we can use debuuging for the sake of fetching for bugs and handling exceptions using professional set of debugging tools ^^ well anyway provide me with more info and I will do my best ^^
Best regards