All Of The Migration Tools To Enable Your OpenVMS Application

Our approach centers around our VX/TOOLS migration tool kit. VX/TOOLS consists of OpenVMS extended language translators , OpenVMS replacement layered products, file systems, form and screen managers & transaction managers. The Sector7 toolkit was created in 1987 and is trusted by some of the world's most critical systems.
ALL
LANGUAGES
DCL
APIs
DECFORMS /SCREENS
RMS
ACMS
RDB
UTILITIES
BAS$ - BASIC Runtime Support
Fully compatible BASIC runtime for OpenVMS applications on Linux, ensuring seamless execution.
CLI$ - OpenVMS Command Interface
CLI interpreter replicating OpenVMS behavior, ensuring command procedures work on Linux.
COB$ - COBOL Support Routines
COBOL runtime for OpenVMS applications, preserving compatibility with system calls and logic.
CONV$ - File Conversion
Converts OpenVMS file formats into Linux-compatible structures while preserving data integrity.
CVT$ - Data Conversion Utilities
Handles OpenVMS data format conversions, ensuring seamless migration to Linux systems.
EDT$ - Callable Editor
Provides an OpenVMS EDT-compatible text editor for interactive and programmatic use.
EXE$ - Operating System Interface
Supports OpenVMS process execution and image management on Linux environments.
FDL$ - File Definition Language
Provides a call-compatible implementation of OpenVMS File Definition Language (FDL$) APIs for x86 and ARM Linux.
FMS$ - Forms Management System
Implements OpenVMS compatible forms processing and user interaction handling.
FOR$ - FORTRAN Support Routines
Provides OpenVMS Fortran runtime support, preserving language features and execution behavior.
FORMS$ - DECFORMS Integration
Supports DECforms based applications, maintaining structured UI and user interaction logic.
LBR$- Callable Librarian
Implements OpenVMS library management routines, preserving archive and module handling.
LIB$ - General Routines
Provides OpenVMS general-purpose utilities, including string, math, and system functions.
MTH$ - MATH Routines
Implements OpenVMS compatible mathematical functions, ensuring precision and compatibility.
OTS$ - Data Conversion Routines
Supports OpenVMS style data conversion, encoding transformations, and structured data handling.
PAS$ - PASCAL Support Routines
Enables OpenVMS Pascal applications to run on Linux while preserving language semantics.
SMG$ - Screen Management
Implements OpenVMS screen management routines for interactive and terminal-based applications.
SOR$ - Interface to SORT
Provides an OpenVMS-compatible sorting interface for structured data processing.
SQL$ - SQL Database Interface
Supports SQL-based data access for OpenVMS applications, preserving query execution behavior.
STR$ - STRING Interface Routines
Implements OpenVMS-style string processing functions, ensuring compatibility with existing applications.
SYS$ - SYS$ Interface Routines
Implements core OpenVMS system service calls, ensuring full execution compatibility on Linux.
VX/ACMS - OpenVMS ACMS(TDF,MDF,GDF,ADF) to C++
VX/RT is a call-compatible library that enables OpenVMS applications to run without modifications on RedHat and SUSE Linux.
VX/BASIC - OpenVMS BASIC to ANSI C
VX/BASIC is a full-featured OpenVMS BASIC to ANSI C Compiler/Transpiler®.
VX/C - OpenVMS C to ANSI C
VX/C is Sector7's automated tool for identifying, flagging and correcting OpenVMS C source code to produce portable POSIX compliant source code.
VX/CDD - OpenVMS CDD
OpenVMS CDD (Common Data Dictionary) for Linux.
VX/CLD - OpenVMS CLD Compiler
VX/CLD is a Command Line Definition (CLD) compiler that allows OpenVMS command parsing to function identically on Linux.
VX/COBOL - OpenVMS COBOL to ANSI COBOL
VX/COBOL converts OpenVMS COBOL to ANSI COBOL allowing applications to run seamlessly on  Linux.
VX/DATAX - OpenVMS RMS Data exchange
VX/DATAX enables seamless data migration from OpenVMS to x86 or ARM Linux.
VX/DCL - OpenVMS DCL
VX/DCL is a fully compatible implementation of the OpenVMS Digital Command Language (DCL) for Linux.
VX/DECFORMS - DECforms IFDL Compiler and FORMS$
VX/DECFORMS: Seamless Migration of DECforms from OpenVMS to Linux.
VX/DMQ - OpenVMS DMQ (PAMS) for x86 Linux
OpenVMS DMQ (PAMS) on Oracle MQ with VX/RT Asynchronous Backplane.
VX/ESQL-FORTRAN - FORTRAN with embedded SQL to Pro*C
VX/ESQL is a powerful tool that converts Pro*Fortran source code into standard Fortran by replacing Oracle SQL calls with Pro*C procedures stored in SQLPC modules.
VX/FDL - File Description Language Routines
VX/FDL is an implementation of OpenVMS File Description Language (FDL) for Linux.
VX/FMS - OpenVMS Forms Management
VX/FMS is a full implementation of DEC’s OpenVMS Forms Management System (FMS) for Linux.
VX/FORTRAN - OpenVMS FORTRAN to ANSI FORTRAN
VX/FORTRAN converts OpenVMS FORTRAN to INTEL FORTAN allowing you to run OpenVMS FORTRAN applications on Linux without manual code changes.
VX/JSP - OpenVMS Print & Batch
VX/JSP is a fully compatible implementation of the OpenVMS Batch and Print Queue Manager, providing both API and command-line interface support for Linux.
VX/LCKMGR: OpenVMS Lock Manager
VX/LCKMGR is a fully compatible OpenVMS lock management system designed for Linux environments.
VX/MMS - OpenVMS MMS to make and XML
VX/MMS parses OpenVMS MMS (Module Management System) files and converts them into XML representations, enabling automated Linux makefile generation.
VX/MSG - OpenVMS Message Compiler
VX/MSG is an OpenVMS message file compiler that translates message definitions (.msg) into an indexed memory file on Linux and Windows, ensuring full compatibility with SYS$ API calls such.
VX/PASCAL - OpenVMS PASCAL to ANSI C++
VX/PASCAL converts OpenVMS PASCAL to beautiful C++ allowing OpenVMS PASCAL programs to compile, link and run on Linux with no manual intervention.
VX/RMS - SYS$ Routines for RMS
VX/RMS is a call-compatible library for migrating OpenVMS RMS applications to Linux without requiring source code changes.
VX/RT APIs
VX/RT is a call-compatible library that enables OpenVMS applications to run without modifications on RedHat and SUSE Linux.
VX/RTR - OpenVMS RTR V2 to Async RTR V3
VX/RTR: Seamless OpenVMS RTRV2 to RTRV3 Migration on Linux
VX/SMG - SMG
VX/SMG is a full implementation of DEC’s OpenVMS Screen Management Service (SMG$) for Linux.
VX/SOR - OpenVMS SORT MERGE
VX/SOR is a complete OpenVMS SORT MERGE implementation, fully supporting the SOR$ API set, VX/DCL command line, and Linux shell execution.
VX/SQLMOD- SQLMOD to Embedded SQL
VX/SQLMOD is a powerful migration tool that converts RDB SQLMOD procedures into embedded SQL in C using Oracle Pro*C or Postgres ECPG.
LANGUAGES

OpenVMS BASIC, C, COBOL Fortran, PASCAL Migration Index

Our approach centers around our VX/TOOLS migration tool kit. VX/TOOLS consists of OpenVMS extended language translators which automatically convert the OpenVMS 3GL to the ANSI equivalent or to C/C++. VX/TOOLS language converters include BASIC, C, COBOL, Fortran and PASCAL (MACRO-32 offered as a service).

Free Code Assessment
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VX/COBOL - OpenVMS COBOL to ANSI COBOL
VX/COBOL converts OpenVMS COBOL to ANSI COBOL allowing applications to run seamlessly on  Linux.
VX/C - OpenVMS C to ANSI C
VX/C is Sector7's automated tool for identifying, flagging and correcting OpenVMS C source code to produce portable POSIX compliant source code.
VX/FORTRAN - OpenVMS FORTRAN to ANSI FORTRAN
VX/FORTRAN converts OpenVMS FORTRAN to INTEL FORTAN allowing you to run OpenVMS FORTRAN applications on Linux without manual code changes.
VX/PASCAL - OpenVMS PASCAL to ANSI C++
VX/PASCAL converts OpenVMS PASCAL to beautiful C++ allowing OpenVMS PASCAL programs to compile, link and run on Linux with no manual intervention.
VX/BASIC - OpenVMS BASIC to ANSI C
VX/BASIC is a full-featured OpenVMS BASIC to ANSI C Compiler/Transpiler®.
API

OpenVMS API Conversion and Migration

VX/TOOLS offers robust API migration tools that automatically translate OpenVMS system calls and APIs to their modern equivalents, streamlining application migration to x86 Intel and other platforms.

VX/RT Overview
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BAS$ - BASIC Runtime Support
Fully compatible BASIC runtime for OpenVMS applications on Linux, ensuring seamless execution.
CLI$ - OpenVMS Command Interface
CLI interpreter replicating OpenVMS behavior, ensuring command procedures work on Linux.
COB$ - COBOL Support Routines
COBOL runtime for OpenVMS applications, preserving compatibility with system calls and logic.
CONV$ - File Conversion
Converts OpenVMS file formats into Linux-compatible structures while preserving data integrity.
CVT$ - Data Conversion Utilities
Handles OpenVMS data format conversions, ensuring seamless migration to Linux systems.
EDT$ - Callable Editor
Provides an OpenVMS EDT-compatible text editor for interactive and programmatic use.
EXE$ - Operating System Interface
Supports OpenVMS process execution and image management on Linux environments.
FDL$ - File Definition Language
Provides a call-compatible implementation of OpenVMS File Definition Language (FDL$) APIs for x86 and ARM Linux.
FMS$ - Forms Management System
Implements OpenVMS compatible forms processing and user interaction handling.
FOR$ - FORTRAN Support Routines
Provides OpenVMS Fortran runtime support, preserving language features and execution behavior.
FORMS$ - DECFORMS Integration
Supports DECforms based applications, maintaining structured UI and user interaction logic.
LBR$- Callable Librarian
Implements OpenVMS library management routines, preserving archive and module handling.
LIB$ - General Routines
Provides OpenVMS general-purpose utilities, including string, math, and system functions.
MTH$ - MATH Routines
Implements OpenVMS compatible mathematical functions, ensuring precision and compatibility.
OTS$ - Data Conversion Routines
Supports OpenVMS style data conversion, encoding transformations, and structured data handling.
PAS$ - PASCAL Support Routines
Enables OpenVMS Pascal applications to run on Linux while preserving language semantics.
SMG$ - Screen Management
Implements OpenVMS screen management routines for interactive and terminal-based applications.
SOR$ - Interface to SORT
Provides an OpenVMS-compatible sorting interface for structured data processing.
SQL$ - SQL Database Interface
Supports SQL-based data access for OpenVMS applications, preserving query execution behavior.
STR$ - STRING Interface Routines
Implements OpenVMS-style string processing functions, ensuring compatibility with existing applications.
SYS$ - SYS$ Interface Routines
Implements core OpenVMS system service calls, ensuring full execution compatibility on Linux.
VX/RT APIs
VX/RT is a call-compatible library that enables OpenVMS applications to run without modifications on RedHat and SUSE Linux.
Guides & Ebooks
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Frequently Asked Questions

Curious about how Sector7 can facilitate your application migration? Explore our FAQs for expert insights.

Is LegacyScan safe to use in production environments?

Absolutely. Our scan is read-only and non-intrusive.

What output does LegacyScan provide?

A comprehensive PDF and HTML report, including file access charts, call maps, SQL summaries, and system health checks.

Why is a scan important before modernizing legacy systems?

Legacy environments often lack visibility. LegacyScan bridges that gap by automating insight into structure, risks, and dependencies.

Why is automated documentation important for legacy COBOL and OpenVMS systems?

Legacy COBOL systems often lack up-to-date documentation, making them difficult to maintain or migrate. LegacyMap solves this by automating the generation of accurate, detailed documentation that reflects the current state of your system. This reduces operational risk, improves code maintainability, and accelerates digital transformation initiatives involving legacy technologies like COBOL, FORTRAN, BASIC, and embedded SQL.

What types of documentation does LegacyMap generate?

LegacyMap produces cross-referenced technical documentation in HTML, PDF, and LaTeX formats, compatible with Doxygen workflows. Outputs include callgraphs, file access mappings, procedure trees, and SQL access flowcharts. This documentation is fully searchable and ideal for developer onboarding, system audits, and modernization projects.

Does LegacyMap support both OpenVMS and IBM Mainframe COBOL environments?

Absolutely. LegacyMap is designed to work across OpenVMS COBOL (including VAX and Alpha systems) and Mainframe COBOL running on z/OS. The tool accommodates platform-specific dialects and embedded SQL formats, giving IT teams a unified documentation workflow for legacy infrastructure. Whether you’re rehosting to Linux or preparing for cloud modernization, LegacyMap delivers the insights you need.

Can LegacyMap document embedded SQL in COBOL programs?

Yes. LegacyMap extracts and visualizes embedded SQL operations such as SELECT, INSERT, UPDATE, and DELETE from COBOL and Pro*COBOL code. It maps SQL table access by program and procedure, making it easier to audit data interactions, refactor database logic, or prepare for migrations to PostgreSQL, Oracle, or cloud-native databases.

What is LegacyMap and how does it help with COBOL documentation?

LegacyMap is a software tool that automatically generates structured documentation from legacy COBOL applications, including those running on Mainframe and OpenVMS platforms. It analyzes COBOL source code to produce detailed callgraphs, SQL access diagrams, and procedure maps—without requiring any changes to your original code. LegacyMap is ideal for teams looking to modernize, audit, or maintain legacy COBOL systems while preserving institutional knowledge.

What industries does Sector7 serve?

Sector7 serves a diverse range of industries, including finance, healthcare, telecommunications, and technology. Our expertise in software migrations enables us to assist organizations across various sectors, helping them modernize their systems while minimizing disruption. Whether you’re a small business or a large enterprise, we have the skills and knowledge to support your migration needs effectively.

How does Sector7 ensure the quality of its migration services?

At Sector7, we prioritize quality and reliability in every migration project. Our team employs a rigorous quality assurance process, including extensive testing and validation, to ensure that the migrated applications function identically to the originals. With a focus on “Bug for Bug compatibility,” we aim to maintain the integrity of your applications throughout the migration process, leveraging our decades of industry experience to handle even the most complex projects.

What sets Sector7 apart from other migration service providers?

Sector7 stands out due to our commitment to customer satisfaction and our deep understanding of legacy systems. With over 35 years of experience in developing migration solutions, we have honed our expertise in translating complex OpenVMS applications to modern languages like C++. Our innovative tools, like VX/Pascal, and our continuous integration practices ensure that our clients benefit from efficient, reliable, and high-quality migration outcomes.

Can I schedule a consultation to discuss my project in detail?

Absolutely! We encourage prospective and current clients to schedule a consultation to explore their migration needs more thoroughly. During this meeting, our experts will work with you to understand your project requirements, discuss potential solutions, and answer any questions you might have. To set up a consultation, simply fill out the contact form and indicate your interest, or reach out to us directly via email or phone. We’re eager to partner with you and ensure your migration process is as smooth and successful as possible.

How do I get started with a migration project at Sector7

To begin the process, simply fill out our contact form or give us a call. Our team will work closely with you to understand your needs, assess the scope of the project, and develop a customized plan for migrating your legacy systems.

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