Everything You Need to Know About Virtualization

Joseph Sibony
Joseph Sibony reading time: 6 minutes
January 4, 2024

Tea or coffee?

Xbox or PlayStation?

Chrome or Firefox?

We’re used to making tricky choices. And the choice between Linux and Windows in cloud computing is no different — often boiling down to cost, flexibility, and project-specific requirements.

While Linux has the benefits of being open source and cost effective, there are instances where you’ll need Windows to tackle anything from regulations and application availability to institutional infrastructure.

But there may be times when you don’t have a choice in the matter      — when you can’t do without Windows because you need to run specific apps or processes on Windows, but you also can’t do without Linux for reasons like costs or needing to stay compatible with existing infrastructure.

For those times, virtualization allows      you      to harness the advantages of Linux while seamlessly running Windows builds, offering      the best of both worlds — the coffee and the tea.

In this blog post, we’ll explore how virtualization works and why you should give it a try. We’ll also shed some light on the tools and techniques that make it possible to run Windows builds on Linux instances.

Why virtualization?

Virtualization acts as a bridge between the two Linux and Windows ecosystems, so you can work on familiar Windows systems while enjoying the cost benefits and flexibility of Linux instances.

Developers can continue working on systems they are comfortable with and making sure they stay compliant with regulations, while also taking advantage of cheaper Linux instances.

And although Linux is cost effective — often free — it’s a steep learning curve to learn how to use it, which is a huge barrier for some teams.

Certain workloads also need Windows mainly because Linux doesn’t have the equivalent application in its own environment.

Can I do it myself?

So, you want to seamlessly run a Windows virtual machine on Linux instances. That’s understandable. But actually doing it requires some really specialized tools, which is unfortunately next to impossible to work with on your own.

As a result, at this moment in time, your best bet for successfully virtualizing Windows builds on Linux instances is third-party platforms or applications.

In short, these handy virtualization tools typically run the back-end processes of connecting workloads to the appropriate instances. This means you don’t need to manually intervene and check everything, making the process much, much quicker and more efficient.

How to run Windows builds on Linux

By default, the Linux kernel doesn’t natively support running Windows applications.

That’s why third-party virtualization tools have become indispensable to developers looking to run Windows builds on Linux instances as a Windows subsystem for Linux, or Linux virtual machine.

Let’s dive deeper into the ins and outs of these tools, including how to get that Windows Linux subsystem, and how they can help you easily create that all-important cross-environment functionality you need:

  • A loader for Windows binaries

One thing that’s essential to a great virtualization tool is a loader that can execute Windows binaries. This loader acts as a “translator” between the two operating systems, allowing Linux systems to understand and run applications designed for Windows.

Ultimately, this means developers can work with Windows applications within a Linux environment seamlessly for a unified development environment.

  • A library for implementing Windows APIs

Another critical component within these virtualization tools is libraries to implement Windows APIs using Unix or x11 equivalents.

By translating Windows APIs into a language compatible with Linux, these tools allow Windows applications to interact with the underlying Linux system — minus the pesky conflicts.

Why is this important?  Because it ensures that even if a specific Windows API is called, the tool can handle it properly within the Linux context.

It’s a great feature — ensuring the compatibility and smooth operation of Windows applications on Linux, but without needing to actually install Windows on the instance.

Simulating Windows environments

As we mentioned above, instead of needing to install Windows on the Linux instance, these virtualization tools cleverly simulate a Windows environment.

This simulation mirrors the behavior of Windows and uses available .dll (dynamic link library) files to emulate essential Windows components. This means that developers can use Windows applications on a Linux instance easily and smoothly without needing a separate Windows license or installation.

WINE for Linux

WINE — short for “Wine Is Not an Emulator” — is not just a loader or library. It’s a compatibility layer that allows the execution of Windows applications on Linux and other Unix-like operating systems.

Long story short, it translates Windows API calls into POSIX (Portable Operating System Interface) calls, which removes the need for a Windows operating system.

That said, it’s important to note that WINE does require some setup on your side. For instance, you might need to adjust the configuration settings to ensure you’re always getting the best performance and compatibility.

Streamlining processes with Incredibuild’s Smart Compatibility Layer

Integrating Windows builds into Linux environments can be a huge undertaking — and certainly not for the fainthearted.

You might have already come across traditional tools like Win4Lin or VMware. These often need you to install Windows on a Linux machine, bringing licensing costs into the fray and defeating the purpose of introducing Linux in the first place.

But there are other solutions. Our Smart Compatibility Layer takes a whole new approach, automating the process to reduce start-up hurdles and let you harness Linux instances without the long-winded manual configurations.

It’s all about keeping virtualization simple. The Smart Compatibility Layer streamlines the setup and execution of Windows binaries on Linux instances, taking away the complexities you’d typically see in other methods.

No more agonizing manual dev work to integrate your Windows builds into Linux instances.

And without blowing our own horn, we like to think we keep our Smart Compatibility Layer as user-friendly as possible — especially the automation for configuration and execution, which significantly reduces your start-up hurdles. Handling intricate details automatically means you can concentrate on leveraging your Linux instances without juggling the technicalities of virtualization setup.

Overall, though, only you can really know what you need from a project. Understanding the inner workings of virtualization tools lets you make informed choices aligned with your specific needs.

So, while some developers may opt for a more manual setup using tools like WINE, if you’re seeking an automated and streamlined approach, you might want to turn to our Smart Compatibility Layer solution instead.

Key features of Incredibuild’s Smart Compatibility Layer


  • Automate configuration

The Smart Compatibility Layer handles all necessary configurations automatically, reducing the setup time while allowing you to focus on your own tasks, rather than waste any time troubleshooting compatibility issues.

  • Efficiently execute Windows binaries

Our tool handles efficient execution of Windows binaries on Linux, providing a seamless experience for developers — like you — who need to work across both environments.

  • Avoid time-consuming manual setup

Say goodbye to manual setup processes. The Smart Compatibility Layer takes care of all the gory details, helping you along with a smooth integration of Windows builds into Linux instances.

The process of running Windows builds on Linux instances involves a combination of sophisticated tools that act as mediators between the two operating systems.

From loaders executing Windows binaries to libraries implementing Windows APIs and the creation of a simulated Windows environment, these tools collectively ensure a seamless and efficient experience for developers.

While some tools may require manual configuration, others — like our Smart Compatibility Layer — simplify the entire process, helping developers harness the benefits of both Linux and Windows without the unnecessary dramas.


Virtualization is a powerful solution for organizations and developers looking to balance the advantages of Linux and Windows environments.

Running Windows builds on Linux instances may seem complex at first, but specialized tools like Incredibuild’s Smart Compatibility Layer simplify the process, offering a seamless experience without the need for extensive manual configurations.

By turning to virtualization, developers can unlock the full potential of both Linux and Windows, ensuring they can be flexible, cost-effective, and avoid compromising any regulatory requirements.

Joseph Sibony
Joseph Sibony reading time: 6 minutes minutes January 4, 2024
January 4, 2024

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