At a glance

Legacy sources: QuickBasic · Turbo Pascal · C · Assembly · Basic PDS · VB-DOS
Modern targets: C# .NET 9 · Go (Golang) · Delphi 12 · TypeScript
Typical timeline: Weeks (virtualization) to several months (re-architecture)
Project range: $5,000–$100,000
U.S. delivery: 100% U.S. citizen workforce, U.S.-soil delivery

What to know before you modernize

Why MS-DOS Modernization?

MS-DOS applications were the backbone of business operations in the 1980s and 1990s, powering critical functions in manufacturing, government, and SMEs. Despite their reliability, these applications are now hindered by outdated hardware and unsupported operating systems. Modernizing them can reduce costs by up to 50%, double performance, and unlock real-time insights through modern architectures.

Languages Behind MS-DOS Apps

MS-DOS applications were predominantly built using QuickBasic, Turbo Pascal, C, and assembly. Modernizing them presents challenges: limited developer expertise, lack of support from modern IDEs, and incompatibility with 64-bit systems. Our expertise spans 13 verticals, ensuring seamless transitions.

Challenges of Legacy Hardware

Legacy MS-DOS applications depend on 16-bit and 32-bit hardware that is increasingly difficult to replace. Scarcity of parts and unsupported operating systems like MS-DOS and Windows XP pose significant security risks. For industries like manufacturing and government, this leads to costly downtime and escalating maintenance expenses.

Our MS-DOS Modernization Solutions

We re-architect your software to leverage modern platforms (C# .NET, Go, or the latest Delphi), ensuring compatibility across Mac OS X, Linux, Windows, and mobile devices. This preserves your existing business logic while enhancing security and performance. For quicker transitions, we provide virtualization solutions that let MS-DOS applications run seamlessly on current hardware.

Deliverables

Modernized codebase in C# .NET, Go, or Delphi
Cross-platform support (macOS, Linux, Windows, mobile)
Preserved business logic with full test coverage
Documentation, runbooks, and CI/CD pipeline
Optional virtualization fallback for rapid timelines