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Appeon · PowerBuilder → Microsoft .NET · Migration

Our Fixed-Scope PowerBuilder to Net Migration Delivers Clean C#

Migrating PowerBuilder to Microsoft .NET? It's a well-understood project. We convert PowerScript and DataWindows into clean C# and ASP.NET Core with Angular or React, on your timeline.

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Powered by the 3PS Migration Engine

The lowest-cost way off PowerBuilder: our migration tooling automates the repetitive work —you pay senior engineers for judgment, not keystrokes.

Automated discovery
Your PowerBuilder estate mapped — workloads, dependencies, licensing — before day one
Conversion tooling
Schema, config and workload translation to Microsoft .NET, automated where it's safe
Parity validation
Side-by-side testing proves Microsoft .NET matches production before cutover
Runbook cutover
Rehearsed, reversible, scheduled in your maintenance window
6–12 months with 4–8
Project Timeline
$150,000–$1,500,000
Fixed Budget
40–70% vs vendor ren
Legacy Support Savings

How we support PowerBuilder → Microsoft .NET after migration

  • Senior engineers convert PowerBuilder to C# and ASP.NET
  • Fixed-scope projects with predictable timeline and budget
  • Legacy stays on vendor support until you're ready
  • 24/7 US-based support during and after migration
  • 40-70% savings on legacy platform support while you plan
  • Clean, modern C# microservices with Angular/React frontend

Developer Retirement Crisis

PowerBuilder developer skills are vanishing; your team can't maintain the codebase.

Security & Browser Failures

Outdated desktop runtimes fail modern browser and security requirements.

Complex Technical Blocks

DataWindows direct-database updates and PFC dependencies complicate your migration.

PowerBuilder → Microsoft .NET migration — your questions answered

Will my PowerBuilder application work after migration?+

Yes. We convert your PowerScript and DataWindows to C# and ASP.NET Core microservices, preserving business logic. You can test in parallel while the legacy remains on vendor support.

What if our vendor renewal lapses during migration?+

Your legacy stays on vendor support as long as your contract is active. If the renewal lapses, our third-party support covers most operational issues while you complete the move.

How do you handle DataWindows that update the database directly?+

Our engineers refactor those DataWindows into modern data access layers using Entity Framework Core, maintaining the same database logic.

Can we keep our existing PowerBuilder developer team involved?+

Yes. We work alongside your team, transferring knowledge. Many clients have their senior engineers review our code during the migration.

Free PowerBuilder Code & DataWindow Assessment

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