The issue occurs because the TSAWARE linker option is set in the ntvdm.exe file that is hosted by the 16-bit application. This behavior prevents the application from working correctly in a Terminal Services session. Resolution. Hotfix information. A supported hotfix is available from Microsoft.

The Fix it solution checks whether if an application is running that is using NTVDM.exe. If an application that is using NTVDM is running, you will receive a message prompting you to close the application before you continue.

Improvements and fixes. This public preview non-security update includes quality improvements. Key changes include: Addresses a threading issue that might cause the Windows Remote Management (WinRM) service to stop working when it is under a high load.

Virtualization lets your PC emulate a different operating system, like Android™ or Linux. Enabling virtualization gives you access to a larger library of apps to use and install on your PC. If you upgraded from Windows 10 to Windows 11 on your PC, these steps will help you enable virtualization.

Windows 7. Symptoms. You run an MS-DOS-based program on a computer that is running Windows 7. The program uses the MS-DOS protected mode interface. In this scenario, the program may crash. Cause. This issue occurs because of a change in the Dosx.exe file in Windows 7. Resolution. Hotfix information. A supported hotfix is available from Microsoft.

Symptoms. Assume that you start a Windows-based application at a command prompt on a computer that is running Windows 7 Service Pack 1 (SP1). In this situation, the initial code page for the Windows-based application may be changed. Additionally, the command prompt may display incorrect output. Notes.

Introduction. This article describes an update that enables upper memory block (UMB) support in the 32-bit version of Windows Server 2008 Service Pack 2 (SP2). More Information. After the update is installed, you can run applications that require UMB support on the 32-bit version of Windows Server 2008 SP2. Hotfix information.

Summary. The x64-based versions of the Microsoft Windows Server 2003 operating systems and Microsoft Windows XP Professional x64 Edition do not support 16-bit programs, 16-bit processes, or 16-bit components.

Fixes an issue in which the application or the system crashes in Windows Vista, in Windows Server 2008, in Windows 7, or in Windows Server 2008 R2 when you start a virtualized application.

Addresses an issue that causes 16-bit apps that run on NT Virtual DOS Machine (NTVDM) to stop working when you open them. Addresses an issue that causes fontdrvhost.exe to stop working when Compact Font Format version 2 (CFF2) fonts are installed.