Legacy

Troubleshooting and maintenance of legacy systems still running in production.

Older Windows Server versions, outdated Exchange environments, deprecated services, as well as legacy accounting software, document management systems, and old database-driven applications that businesses still rely on.

Focused on keeping aging infrastructure stable and operational.

How to Let a Standard Domain User Run One Program as Administrator Without Giving Admin Rights

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In many corporate environments, users work under standard domain accounts without local administrator privileges. This is a fundamental security practice known as the principle of least privilege. However, system administrators frequently encounter a practical problem:some applications require administrator rights to run, even though users only need access to that specific application. This situation is common … Read more

Run Legacy Applications Without UAC Prompt Using RunAsInvoker

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Some legacy Windows applications always trigger a UAC prompt asking for administrator credentials when launched on Windows 10 or Windows 11. This usually happens because the application contains an embedded manifest requesting elevated privileges such as: or In many cases, these applications do not actually require administrator privileges to function correctly. The elevation requirement was … Read more

How to Run 16-bit Applications (e.g. Old Microsoft Access) on Windows 11 x64

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Modern 64-bit versions of Windows, including Windows 11, do not support 16-bit applications. If you try to run one, you’ll get a compatibility error. This happens because the NTVDM subsystem is not available in 64-bit Windows. Fortunately, there’s a lightweight solution: WineVDM (also known as OTVDM). What Is WineVDM (OTVDM)? WineVDM is an open-source compatibility … Read more