Services / Legacy Modernization

Legacy Application Modernization Services

Ignyte Software migrates legacy applications, such as old .NET Framework systems, Access databases, Excel-driven processes, and unsupported vendor software, to current, secure, supported platforms without losing the business logic your operations depend on.

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What we deliver

  • .NET Framework applicationstoModern .NET
  • Access databases and Excel processestoWeb applications
  • Unsupported vendor softwaretoSoftware you own
  • Orphaned, undocumented codetoDocumented and under source control
  • One big-bang rewritetoIncremental, strangler-pattern migration
  • Lexington, KYCentral Kentucky & nationwide
  • Staged, reversible migrationsEvery cutover has a tested rollback
  • Current .NET and SQL ServerPlatforms that still receive security updates
  • First conversation is freeWe reply within one business day

Last updated October 21, 2026

Legacy Systems We Modernize

Legacy systems usually start as a reasonable solution the business has since outgrown. The technology fell out of support, the person who built it moved on, or the business changed faster than the software could. These are the situations we take on.

Out-of-support .NET Framework applications

Older ASP.NET Web Forms, WinForms, and .NET Framework services on versions that are out of support or close to it, and that are hard to host, hire for, or extend.

Microsoft Access databases

Business-critical Access tools that have hit file-size, concurrency, or reliability limits and need to become a multi-user web application.

Excel-run processes

Spreadsheets with fragile macros and manual steps that became the system of record for an important workflow.

Undocumented or orphaned code

Systems whose original developer is gone and whose behavior now lives only in the running application.

Unsupported vendor software

Off-the-shelf products the vendor has abandoned or priced out of reach, or that no longer fit how you work.

A Staged Modernization Process

Modernization starts by learning what the current system does, which business rules it enforces, where its data lives, and which integrations depend on it. What we learn determines whether the right first move is stabilization, migration, or replacement of one high-risk part. The existing system stays in service throughout, and we move work across in stages (the strangler pattern), so there is no month-long freeze and no single cutover that has to go perfectly.

  1. 1
    Assess

    Map workflows, data, integrations, failure points, and unsupported components.

  2. 2
    Stabilize

    Get source control, backups, deployment steps, and monitoring in place before we change any behavior.

  3. 3
    Sequence

    Choose the smallest change that removes the most operational risk while the rest of the system keeps running.

  4. 4
    Migrate

    Move code and data in stages, with checks that compare the new system's results against the existing one.

  5. 5
    Cut over

    Switch users only after the new path works, rollback is tested, and dependent systems are ready.

  6. 6
    Support

    Stay on after cutover to monitor the new system, fix the issues that only show up once people use it day to day, and keep it patched and documented as the business changes.

How We Keep Modernization Low-Risk

The riskiest moment in a modernization is the day you switch the new system on. We plan every project so that day is small, reversible, and boring.

The old system keeps running

Users stay on the current application until the replacement for their part is ready, so there is no gap in service.

We verify against the system you have

We compare the new system's results with the existing system's, on real data, before anyone relies on them.

Every cutover has a rollback

We test the rollback before we go forward. If something breaks, we revert.

Change ships in small pieces

Modernizing one module at a time keeps each release easy to review, test, and reverse.

What You End Up With

Newer technology is only part of the goal. You should end up with a system your team can run, trust, and change.

  • A platform on current .NET and SQL Server that still receives security updates.
  • Your data preserved, migrated, and verified, with its business rules intact.
  • Documentation and source control, so the system is no longer trapped in one person's head.
  • A codebase your team can extend without breaking what already works.

Technologies

.NETBlazorSQL ServerC#

Start With a Review

The paid step between a free call and a build. The fee is credited toward the build.

Production-Readiness Review

For software you already run. You get a scored report on access control, data, backups, security, and how easy the software is to change, a risk list with recommended fixes, three priced options, and a fixed-price offer for the next step. Fee credited toward the build.

Workflow & AI Review

For a new build. You get a map of the process, an inventory of the systems and data involved, a risk list, three priced options, and a fixed-price offer for a first version. Fee credited toward the build.

See every step, from the free call to a care plan.

Modernization Resources

How we approach these projects, in more depth. Our own website moved from ASP.NET Web Forms to .NET 10 in 2026.

Guide

Legacy .NET modernization without a full rewrite

How we stage a migration and avoid a big-bang rewrite.

Read the guide Guide

Replacing an Access database with a web application

Moving Access data to SQL Server and the interface to the web.

Read the guide Guide

Taking over an undocumented codebase

How we map and stabilize a system nobody fully understands.

Read the guide Service

Software Rescue & Takeover

For inherited or abandoned software: stabilize it first, then decide what to change.

See the service Service

.NET Upgrades

Web Forms, WCF, and WinForms paths, and what the November 2026 end of support means.

See the service

Common Questions

Yes. We get the code into source control, map the business logic, and stabilize the system before we modernize it. Our Software Rescue & Takeover service covers this, and it starts with a Production-Readiness Review.

No. We favor incremental modernization: replace the riskiest pieces first while the old system keeps running.

Yes. Verified data migration is part of every modernization plan, and we preserve and validate legacy data before cutover.

Yes. We migrate in stages so the current system stays in service, and we move users to the new one only after each piece is proven and rollback is ready.

We assess each part by how much operational risk it carries and how much modernizing it would gain. Stable, low-risk parts can be re-hosted or left in place, while fragile or unsupported parts are rebuilt first.

Out-of-support .NET Framework, Access, and vendor platforms stop receiving security patches, which leaves known vulnerabilities open. Moving to a supported platform closes that gap and restores a path for future updates.

Ready to talk about legacy modernization?

We reply within one business day, and the first conversation is always free.

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