.NET migrations, end to end.
Framework, WebForms, VB.NET, COM interop, mixed C#/VB solutions. Parity proof at every step.
Why .NET migrations stall
Business logic is buried
It lives in WebForms code-behind, stored procs, and ViewState. No one knows what the system actually does, so no one knows what's safe to change.
Auto-translators stop at 60%
VB.NET, classic ASP, COM interop, Windows-only dependencies. The last 40% needs hand work, and that's where projects stall for months.
Parity is impossible to prove
The code ships. Tests pass. Something subtle regresses in production. Then the rollback debate begins.
Three layers on every .NET migration
Deterministic analysis alone misses intent. AI alone hallucinates. SMEs alone don't scale. We run all three on every job.
Deterministic analysis
Our proprietary engine maps the structure of your .NET codebase. Dependencies, entry points, data flows, dead code, WebForms surface, COM interop, mixed-language references. Output you can trust before making changes.
AI for scale
Anchored in static analysis, our AI agents apply verified migration patterns across thousands of files. ASPX to Razor, VB.NET to C#, code-behind to controllers. Each pattern validated once, then scaled.
SMEs and AI experts
Senior .NET engineers validate the output, add the know-how that only lives in people's heads, and catch the edge cases auto-translators miss. No "AI-best-effort" shipped.
Legacy STA threading assumption. Can't be auto-translated. Replacing with explicit async boundary and adding parity test for concurrent calls.
ViewState carries session-scoped pricing rules. Migrating to server-side session, not Razor model binding. Locked.
Your .NET migration, in four scoped stages
Four stages. Fixed price per stage. Commit one step at a time, with validation evidence at every one.
Assessment
Snapshot of your .NET stack and modernization fit. Framework version inventory, WebForms surface, third-party library audit. Scoped plan, risks, and success criteria.
- Stack snapshot and inventory
- Scoped plan
- Risk register
- Locked success criteria
Specification
Extract the business logic, critical flows, and system behavior teams and agents need to migrate code safely. Documented, queryable, with parity test specs locked.
- Architecture and dependency maps
- Extracted business logic
- Documented critical flows
- Parity test specifications
Modernization
Migrate the code to your target .NET stack. Refactor services where the original structure won't survive the move. Visible progress throughout.
- Migrated code on target .NET
- Refactored services where needed
- API and integration code
- Parity validation evidence
Enablement
Keep evolving your .NET system independently. Parity test suite, playbooks, training, and knowledge base, handed off to your team.
- Parity test suite
- Migration playbooks
- Team training
- Queryable knowledge base
A workspace, not a stack of files
Every deliverable lives in one place. Yours to keep, queryable by your tools.
Delivered change
- Migrated code on target .NET
- Refactored services where needed
- API and integration code
- Cross-platform-ready where applicable
System understanding
- Architecture and dependency maps
- Dead-code analysis
- Extracted business logic
- Critical flow documentation
- Queryable by MCP
Enablement assets
- Parity test suite
- Migration playbooks
- Team training
- Queryable knowledge base
Move .NET forward. With proof.
Get in touch with our team. We'll talk through your codebase, your target stack, and the right path off legacy .NET.
Get in touch