VB6 → C# Migration Verification & Validation

De-risk legacy software
modernization.

Codelta V&V verifies your VB6 to C# migration with cryptographic proof of behavioural equivalence — and hands your auditor a signed compliance certificate they'll actually accept.

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30-day free trial · No credit card · SOC 2 Type II · HSM-signed certificates

codelta.ai / results / VER-2026-08-13-A4B2

CustomerApp Migration · Complete verification

Verification passed with findings · signed HSM-key #2

Checks passed

37 / 40

Compliance

A−

Critical

Runtime

2m 12s

Severity	Rule	Location	Status
CRITICAL	CWE-89	Customer.cls:45	SQL injection · triage
CRITICAL	CWE-89	OrderRepo.cls:128	SQL injection · triage
FIXED	CWE-22	FileService.cls:203	Path traversal · resolved

Why enterprise migration teams choose Codelta V&V

Not just faster migration — provably correct migration.

Cryptographic equivalence proof

CFG isomorphism, DFG equivalence, and symbol-table alignment between VB6 source and C# target. Not a diff — a mathematical guarantee.

40 checks · CFG · DFG · Symbols · 98%+ confidence

Compliance out of the box

Automated coverage of CWE Top 25, OWASP Top 10, GDPR, ISO 27001, PCI DSS, NIST CSF, HIPAA and 5 more — with signed attestation for auditors.

12 standards · 428 requirements · 55% automated

Immutable audit trail

Every action signed with HSM keys and chained by hash. 7-year retention, tamper-evident, and formatted for regulatory sign-off.

HSM-2 · SHA-256 chain · 7yr retention

De-risk legacy softwaremodernization.

Not just faster migration — provably correct migration.

Cryptographic equivalence proof

Compliance out of the box

Immutable audit trail

Start verifying your migration today.

De-risk legacy software
modernization.