An ADO application does not run on down-level operating systems after you recompile it on a computer that is running Windows 7 SP 1 or Windows Server 2008 R2 SP 1 or that has KB983246 installed
A Better solution for the Windows 7 SP1 ADO GUID changes – CSS SQL Server Engineers
Gli eventi della rotellina del mouse non funzionano nell'IDE di Visual Basic 6.0