Assuming you've just renamed the Db to which the application points, you also have to rewire where the IQOffice server points.
IQffice is installed.NSIInteractive.iqm, which will launch the IQ Matcher app.E:/NSI/IQOffice/Matching folder.File BOLE DB Data Source Connection string to point to the new location of the DB.NSIInteractiveMerge.iqm, which will launch the IQ Matcher app.File BOLE DB Data Source Connection string to point to the new location of the DB.Intech Soap Server service.