QuickBooks Error Event log error 4 on the server hampers working on the QuickBooks.  Causes:  Damage in the QB files.  Issues in the .NET framework 4.0.  To resolve QuickBooks Error Event log error 4 on the server: You need to uninstall Microsoft .NET framework 4.0 and get the Microsoft .NET framework 3.5 installed in the system.   If you are still...