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Offer · WinDev / WebDev migration
Progressive migration of your WinDev, WebDev and HFSQL applications to ASP.NET Core, Blazor and EF Core. No service interruption, accelerated by AI, with a quality, security and GDPR audit at every step.
Today
Tomorrow
The situation
01
WLangage developers are getting rare and the knowledge often sits with one or two people. Every departure weakens maintenance.
02
One uncontrolled version upgrade is enough to block production. Without a rollback strategy, you endure instead of deciding.
03
Scattered HFSQL data, partial traceability, loosely separated access: security and GDPR become hard to prove.
The method · Strangler Fig
New ASP.NET Core and Blazor modules replace the existing ones one at a time. The old application keeps serving until the last switch-over.
01 · Audit
Inventory of WLangage code, HFSQL data and dependencies. Business criticality of each module.
Deliverable: prioritised roadmap
02 · Secure
Critical modules made reliable, WinDev version under control, rollback strategy tested before any switch-over.
Deliverable: continuity plan
03 · Migrate
Rewrite in Clean Architecture (DDD, CQRS where useful). HFSQL data migrated to SQL Server or PostgreSQL through traced ETL.
Deliverable: modules in production
04 · Hand over
CI/CD, Azure Monitor and Application Insights supervision, training and change management (ADKAR).
Deliverable: autonomous team
AI-augmented migration
Generative AI reads, documents, proposes and tests. A senior architect reviews and approves every line that goes to production. The result: less time deciphering legacy, more time on quality.
AI usage is framed with you before the start: which sources, which models, which hosting. Nothing leaves without your approval.
WLangage windows, procedures, queries and dependencies analysed and linked together.
The logic buried in the code is documented before rewriting, then validated with your experts.
C#, Blazor and EF Core code proposals, reviewed and adjusted by a senior developer.
Generated from the behaviour of the current application, to prove nothing has changed.
Detection of vulnerabilities, anti-patterns and deviations from standards on every pull request.
HFSQL-to-SQL mapping verified, personal data identified and classified.
What we check
Every migrated module passes the same checks before going to production. You receive the result, point by point.
Client references
For confidentiality, our clients remain anonymous: we state their industry, the engagement and the technologies involved.
Insurance · WebDev migration
Technical lead · team of 6 developers · multi-year engagement
WebDev → ASP.NET Core · Angular · CQRS · DDD
Insurance · ERP and pricing
ERP technical consultant · several companies
.NET MVC · WinDev · SQL Server · Clean Architecture
Financial services · Leaving MS Access
ERP developer · audit and consulting firm
MS Access → HFSQL · ERP temps et facturation
Several industries · Audit and rollback
Technical advisor · Tech Lead
WinDev · ASP.NET Core · Blazor · Strangler Fig
HFSQL ETL flows to SQL Server and PostgreSQL, full traceability and GDPR compliance.
GDPR and Solvency II compliant screening, traceable decisions.
Critical WinDev modules secured before migration, without interruption.
Developers coached until fully autonomous, L2/L3 support.
The offer
You start small and decide on measured results. No long commitment before you have seen a first module running.
Step 1 · a few weeks
Code, data, versions, security and GDPR put under the microscope. You receive a costed, prioritised roadmap.
Fixed fee
Step 2
A first module migrated end to end, in production, with its four checklists validated.
On quotation
Decision point
Step 3 · at your pace
Module by module, the old application fades out. Your teams take back control on a modern base.
Monthly billing
Frequently asked questions
Let's talk
A first conversation at your offices or by video call. Tell us which WinDev version you run and what keeps you up at night.
contact@welyne.comwww.welyne.comFrance · Belgium · Luxembourg · Switzerland