An Unexpected Error has Occured in “QuickBooks”: Mainframe must be Already Created by Now as this DLL is Demand Loaded [FIXED]
The “An Unexpected Error has Occured in “QuickBooks”: Mainframe must be Already Created by Now as this DLL is Demand Loaded” error message can show up when QuickBooks cannot connect with the Integration Manager. This error can occur due to… Read More »An Unexpected Error has Occured in “QuickBooks”: Mainframe must be Already Created by Now as this DLL is Demand Loaded [FIXED]