When you run a 16-bit application on a Windows Vista-based or Windows Server 2008-based computer, some controls in the application are not painted correctly. Therefore, the application’s user interface (UI) is not displayed correctly.
This problem occurs when the Desktop Window Manager Session Manager service is disabled on the computer. If you enable this service, this problem no longer occurs.
- By default, the Desktop Window Manager Session Manager service is disabled when the system is hosted on a virtual system such as Microsoft Virtual PC.
- This is a known issue in the Threed16.ocx control that is included with Microsoft Visual Basic 4.