Microsoft has maintained backward compatibility for VB6 runtime (MSVBVM60.dll) throughout Windows 10 and 11. However, the IDE (which requires vb6tmpltlb) is not supported. The official stance is: VB6 IDE is deprecated and unsupported on Windows 10 and later.
Nevertheless, thousands of companies still run the VB6 IDE on Windows 10/11 by:
Will this work on Windows 12? It is uncertain. Microsoft is gradually phasing out 32-bit COM registration surfacing. The safest long-term strategy is to migrate VB6 projects to .NET (using tools like VB Migration Partner) or to encapsulate VB6 logic into a service layer, reducing dependency on the IDE and its template library. vb6tmpltlb
The term vb6tmpltlb refers to a specific type of file or configuration used in Microsoft Visual Basic 6.0 (VB6) development environments. It is typically associated with Type Libraries or Templates that define interfaces, structures, and constants for COM (Component Object Model) objects.
This guide explains what this component is, its role in VB6 development, and how to work with it. Will this work on Windows 12
If VB6 throws an error related to the library upon loading a project:
Some legacy VB6 data-binding mechanisms (like the Data control or DataEnvironment) rely on templates defined in vb6tmpltlb. Removing or corrupting this file will break RAD (Rapid Application Development) features in the IDE. If VB6 throws an error related to the
The name vb6tmpltlb breaks down into three parts:
Thus, the Visual Basic 6.0 Template Type Library.
This file is not a user-editable resource. It is a system-level binary file installed alongside the VB6 IDE and runtime. Its core purpose is to provide the base type definitions for dynamically creatable objects within the VB6 environment—specifically, objects used during the design and compilation of forms and controls.