Export or support restriction
A foreign OEM can no longer provide support for a commercial defence or aerospace software system. The programme office needs an independent recovery path while replacement or approved modification is arranged.
DEFENCE & AEROSPACE
Defence PSUs, aerospace manufacturers and dual-use technology companies depend on specialist OEM software for maintenance, logistics, simulation and programme support. Castler produces signed Proof of Recovery for scoped support applications so continuity is backed by independent evidence.
DEFENCE SUPPORT SOFTWARE ESTATE
Independent recovery evidence for scoped support systems
DEPLOYMENT OPTIONS
Cloud · on-premise · air-gapped for scoped engagements
THE PROBLEM
Commercial defence and aerospace programmes often depend on specialist support software, restricted know-how and supplier operating teams. Corporate change, export constraints or contractor concentration can interrupt support before a replacement path is ready.
A foreign OEM can no longer provide support for a commercial defence or aerospace software system. The programme office needs an independent recovery path while replacement or approved modification is arranged.
A maintenance or simulation software supplier is acquired and its India support contract changes. The operator retains the deployed system but not a tested path to rebuild it independently.
A bespoke support platform depends on a small contractor team. Staff departure leaves source, deployment knowledge and operating procedures fragmented across people and systems.
THE POLICY CONTEXT
DAP 2020 prioritises indigenisation and self-reliance. DRDO's 2025 ToT policy states that software is normally transferred without source code, with source-code transfer requiring exceptional approval. That makes contractual custody, defined trigger rights and independently tested recovery evidence important controls for scoped commercial and PSU software dependencies.
Self-reliance, indigenisation, Make, Design & Development and Strategic Partnership
Custody record + independently tested recovery evidence
Software ToT normally excludes source code; source-code transfer requires a justified exceptional approval
Multi-party custody + contractual trigger framework
Protection, disaster recovery and business-continuity controls for critical infrastructure
Proof of Recovery + Deployment Runbook
THE SOLUTION
Castler supports standard cloud-hosted custody and scoped on-premise or air-gapped deployments for sensitive commercial and PSU contexts. The verification process rebuilds vendor software in a controlled environment, and a named engineer signs the resulting recovery pack.
Maintenance-management, logistics and fleet-support software kept current in custody and backed by release-specific recovery evidence.
Commercial simulation, training-management and scenario platforms independently rebuilt and verified against the declared architecture.
Programme, communication-support and infrastructure-management applications covered under defined agreements. Operational weapon systems are outside this page's scope.
Sensitive-deployment note
Deployment architecture is scoped engagement by engagement. This public page covers commercial and PSU support software only; classified systems and operational weapon systems are not described here.
REPRESENTATIVE PROGRAMME
This is an illustrative defence-PSU remediation model, not a claimed customer engagement. Scope and timelines depend on system classification, deployment restrictions, contractual rights, deposit quality and OEM cooperation.
Identify maintenance, logistics, simulation and support applications suitable for contractual custody and independent verification.
Agree multi-party rights, bring approved source and deployment artefacts into the selected environment, and reconcile missing dependencies.
Rebuild each scoped release independently, test the permitted recovery procedure and issue the signed Proof of Recovery pack.
DEFENCE & AEROSPACE
Bring your commercial or PSU maintenance, logistics, simulation and support-software estate. Deployment requirements, including isolated environments, can be discussed under NDA on request.
Book a 15-min briefing