i tried with xml file.But the again the problem here is...

The xml file created for one package will not be available in other packages(I created configuration(xml) file by using ssis-->Package...

thanks.it is very good approach.

But can we create a file which is used to keep all the paths instead of storing as a table in database as this method could...

Package Configurations which were developed for one package will not be visible for using in other packages.I want to make those package configurations dynamic.