Alchemy by Cloudhouse | Legacy Application Modernisation Without the Rewrite

Cloudhouse Alchemy

Modernise your apps.
Without rewriting a line.

Alchemy decouples legacy Windows applications from the operating systems they were built for. Modernise without rewriting, refactoring, or redeveloping. Package once and run anywhere, on Windows 10, 11, Server 2025, AWS, Azure, or any cloud, with 100% migration success guaranteed.

Book an Alchemy demo See how it works

LegacyApp.exe Before

Target OSWindows Server 2008

StatusUnsupported

Risk levelCritical

Alchemy.package Packaging

MethodAgentless

Code changesZero

Dependencies247 / 247

PackagePortable

ModernApp.exe After

Target OSWindows Server 2025

StatusSupported

DowntimeNone

CompliancePassing

100%

Migration success rate, guaranteed. Every application, every time.

10+

Years modernising mission-critical enterprise applications

Lines of source code changed. No refactor, no recode, no agents.

Any

Windows platform from XP onwards, to any modern target

The Problem

The applications your business runs on are older than the people running it.

Windows end-of-support deadlines don't wait. Neither do regulators. Every year another platform reaches end-of-life, and enterprises are left with applications that work perfectly, but no longer run anywhere supported.

Windows Platform Timeline

Oct 2023

Windows Server 2012 , End of Mainstream Support

ESU paid extensions began

Apr 2026 , this month

Kernel driver trust changes take effect

Windows 11 and Server 2025 permanently end trust in cross-signed drivers. Legacy apps relying on older signing infrastructure break.

Oct 2026 , 6 months away

Windows Server 2012 ESU ends, permanently

No more paid extensions. Estates still on 2012 face a hard compliance wall.

Oct 2028

Windows 10 ESU ends

Desktop estates face the same cliff edge.

When applications and operating systems are entangled, change becomes impossible.

Most enterprise applications weren't built to be portable. They were built for a specific Windows version, a specific runtime, a specific set of dependencies, and those unintended dependencies are what makes modernisation so painful.

Refactoring is expensive. Rewriting is riskier still. And pausing modernisation isn't an option, not with regulators, auditors, and security teams watching every unsupported endpoint.

Legacy apps trap you on legacy platforms

Windows Server 2003, 2008, XP, 7, 8, the applications still running on them are often the ones you can't afford to touch.

Rewriting rarely works, and when it does, it's years late

Industry data shows a large proportion of application modernisation projects run over budget or fail outright. The source code is often gone, the developers long retired.

Unsupported OS = audit exposure, breach risk, licensing overhead

FCA, SOX, DORA, PCI-DSS, ISO 27001, all require supported software. Every unsupported server is a risk register entry you can't close.

How Alchemy Works

Package once. Deploy anywhere. Nothing rewritten.

Alchemy is agentless. Nothing runs on your endpoints. Nothing touches your source code. We resolve the unintended dependencies between the application and its original OS at the packaging stage, then run the application unchanged on the target platform.

Step 01

Capture

We analyse your application and its original environment, every file, registry key, network call, process, and mutex. No source code required.

Step 02

Package

Alchemy bundles the application with the compatibility layer it needs into a portable container, resolving every unintended OS dependency.

Step 03

Deploy

Run on Windows 10, 11, Server 2016, 2019, 2022, 2025, or any major cloud. Same application, modern platform, zero refactor.

What Alchemy delivers

Agentless

No source code changes

32-bit and 64-bit support

On-prem, hybrid, cloud

Citrix, VDI and AWS WorkSpaces ready

Evergreen IT, future-Windows ready

100% money-back guarantee

Use Cases

Three deadlines. One answer.

From 32-bit Windows apps on Server 2003 to Windows 11 desktop rollouts stalled by compatibility, Alchemy unlocks the modernisation moves your estate has been waiting for.

Oct 2026 Deadline

Server End-of-Support

Migrate Windows Server 2003, 2008, 2008 R2, and 2012 workloads to modern platforms, on-premise or in the cloud, without refactoring, recoding, or upgrading.

6 months

until Windows Server 2012 ESU ends

Start migration journey

Cloud-Ready

Cloud Migration

Take any Windows application to AWS, Azure, Google Cloud, or any provider. Package once, deploy anywhere. Fully portable, works with every major cloud platform.

Any cloud

AWS, Azure, GCP, hybrid, on-premise

Migrate to any cloud

Desktop Modernisation

Windows 11 Rollout

Is your Windows 11 rollout stalled by incompatible applications? Our application compatibility packaging gets your stuck estate moving, without the endless rework.

Oct 2028

Windows 10 ESU ends, desktop estates next

Get apps working again

What It Unlocks

More than migration. Future-proof infrastructure.

Alchemy isn't a point tool for one deadline. It's a sustainable modernisation capability, one that lets your applications outlive any single Windows release.

Simplify complexity and cut costs

Streamline IT management across cloud and on-premise environments. Reduce licensing, support, and infrastructure overheads with automated, repeatable packaging.

Accelerate migration

Simplify and speed up migration to any platform with Alchemy's automated packaging and deployment. What took months now takes weeks.

Bridge the skills gap

Utilise existing team expertise for smooth transitions across cloud and on-premise platforms, no need to hire rare legacy developers or retrain on new stacks.

Future-proof and resilient

Adapt applications to evolve with your business. Safeguard against outages, protect against the next end-of-life deadline, and ensure long-term resilience.

Trusted where change cannot fail

500+ Enterprises · 4 Continents · Since 2010

Customer Voices

From unfixable to unstoppable.

Real outcomes from organisations modernising mission-critical applications with Alchemy.

Alchemy has truly been a game-changer for us. It made the process of migrating and upgrading our legacy systems so much easier. But what stood out the most was the Cloudhouse team, they were outstanding, always there when we needed them. This experience has been critical for us, and it's reshaped how we approach our IT strategy.

A Leading UK Governmental Organisation

Public Sector , Application Modernisation Programme

Alchemy played an essential role in our digital transformation, allowing us to seamlessly move our legacy applications to modern platforms. The efficiency and security improvements were critical to our success. The outstanding support from Cloudhouse's team was invaluable, ensuring that our IT infrastructure is now more secure and future-ready.

A Major Financial Institution in Australia

Financial Services , Digital Transformation

See It In Action

Transform legacy IT, in three minutes.

Watch how Alchemy resolves the unfixable and makes your legacy estate portable.

Technical Capabilities

Built for the unfixable.

A decade of enterprise engineering, packaged into one modernisation platform. Click any capability to expand.

Alchemy makes 32-bit Windows apps for Windows XP, 7 and 8, Server 2003, 2008 and 2008 R2 run on Windows 10, 11 and Server 2016, 2019, 2022 and 2025. Redirections can be applied to file, registry, network (IP addresses and ports), and processes (mutexes and semaphores), enabling desktop apps to run in multi-user environments like Citrix Virtual Apps.

Run legacy applications in isolated containers that protect them from, and are protected from, the underlying modern OS. No interference with other workloads, no shared-state conflicts.

Keep business-critical web applications that still require Internet Explorer running on modern Windows, even after Microsoft's IE retirement.

Packaged applications integrate cleanly with existing client-side tools, MDM, SCCM, Intune, Ivanti, working with your existing deployment tooling.

Packaged applications are portable across future Windows releases. When the next OS drops, your packaged apps come with you, no re-engineering required.

Deploy the same packaged application on-premise, in AWS, Azure, GCP, or in hybrid environments. AWS WorkSpaces and VDI ready out of the box.

Alchemy packages behave like standard Windows applications. Your team manages them with tools they already know, no new skills, no new consoles.

Once packaged, applications deploy and launch in seconds. No installation required on the target endpoint, no persistent agents, no background services.

Ready When You Are

Your deadline's coming.
Your applications are ready.

Book a 30-minute conversation with our modernisation team. Bring your hardest application, the one everyone else said was unfixable, and we'll show you how Alchemy handles it.

Book your demo Download the Alchemy datasheet

Modernise your apps. Without rewriting a line.