Phone: +1.978.451.0110

Welcome to VMS Software!

We develop, sell and support the OpenVMS™ operating system.

Our mission is to develop, sell, and support innovative and advanced releases of OpenVMS, the most secure operating system on the planet. We are engaged in this mission with one core motivation: to support and enable our customers in running their mission critical applications at the legendary uptime levels OpenVMS is known for, at maximum performance levels, today and into the future.


We sell and distribute software licenses to new releases of the OpenVMS operating system and layered products associated with that OS. We have released multiple versions of VSI OpenVMS for Intel Itanium-based and DEC Alpha-based servers in both English and Japanese. Our R&D group is hard at work on a release for X86. Further in the future, we are exploring other hardware platforms as well.


We provide all levels of support and maintenance services for VMS Software, Inc.'s own releases of the OpenVMS operating system—our first being a version of OpenVMS for Itanium-series servers, running Intel i4 Poulson processors. We also provide support and maintenance services for versions of OpenVMS that are no longer supported by HP.

Critical Solutions

VSI has redefined how professional services are provided to platform users. Given the particularly tight requirements of our mission critical customers, and the low supply of OpenVMS experts, VSI has teamed up with the best OpenVMS service providers on the platform, worldwide. We will provide the best possible solution, worldwide, for even the most complex customer projects.


VSI presents periodic webinars that started on Feb 22, 2018. VSI senior managers, partners, and users will present the latest VSI OpenVMS updates, business activities, partner offerings, and many more issues that affect the OpenVMS platform. These webinar series are live presentations with recordings and presentations available for download at the conclusion of each webinar episode.

SPOTLIGHT: Status of OpenVMS x86 Port

Curious about the progress of our effort to port OpenVMS to the mainstream Intel x86-64 hardware platform? Join us on our State of the Port web page. Our x86 team is now providing "proof points" on the path to First Boot.

Latest update: Proof Point 21 achieved!

SPOTLIGHT: OpenVMS Training Available Now

Official OpenVMS training is now offered by VMS Software, Inc. and its partners. You are welcome to take the course at our headquarters in Bolton, Massachusetts USA (guided tour included, time permitting), or join the live instructor in a webinar setting. We also have sessions in Europe at our Authorized Training Facilities there. Finally, if you need training at your company location, we can also arrange for that.
News & Events
  • November 2, 2018

    VMS Software, Inc. (VSI) is delighted to welcome Ray Turner to the VSI European sales team. Prior to joining VSI, Ray had a stellar, 32-year career supporting OpenVMS customers at HPE. He has a passion for the platform and a commitment to "doing the right thing" for customers. Ray joins VSI's effort to expand global sales and marketing. He will be reporting to Terry Holmes, VP of Sales & Marketing.

    For more information, please contact

  • September 28, 2018

    Join VMS Software and Oracle this November in Europe (Belgium, Netherlands, France, Germany, & Austria), and January through February in North America (NY, VA, IL, Ontario, CA, WA, and TX) for product update sessions, including topics on Oracle Rdb / Oracle Database updates, VSI OpenVMS updates, OpenVMS in the cloud, and the new VSI TCP/IP stack.

    Click here for more information.

  • May 7, 2018

    Join us in Leipzig, Germany May 14-16, 2018, for the latest OpenVMS update. VSI's VP of Sales & Marketing, Terry Holmes, and Director of Application & Open Source Services, Brett Cameron will be presenting.

    Click here to register.

  • May 7, 2018

    The UK HP User Group is delighted to announce an OpenVMS Technical Exchange Day with VSI and Oracle on May 23, 2018 in LONDON. VSI's VP of Sales & Marketing, Terry Holmes will be presenting.

    Click here for a detailed agenda and registration information.

  • March 21, 2018
    Security Patch Kit DCL100 Available

    VMS Software, Inc. (VSI), released a patch kit for all versions of OpenVMS to address a potential security vulnerability. A malformed DCL command table may result in a buffer overflow allowing a local privilege escalation in non-privileged accounts. This bug is exploitable on VAX and Alpha and may cause a process crash on IA64. All versions of VMS and OpenVMS after and including VAX/VMS 4.0 are affected.

    Click here to download the security announcement from VSI's VP of SW Engineering, Eddie Orcutt.

  • March 8, 2018
    Announcing VSI Cloud for VAX/Alpha Servers Running OpenVMS

    VMS Software, Inc. (VSI), the exclusive developer of the OpenVMS operating system, and Advanced Virtualization Technologies (AVT), today announced the launch of their VSI Cloud solution for VAX and Alpha servers running OpenVMS.

    Click here to read the press release.

    Click here to read the data sheet.

  • February 15, 2018
    VMS Software, Inc. Partners with PDV-Systeme GmbH

    PDV-Systeme GmbH, headquartered in Goslar and Munich, Germany. PDV-Systeme will help OpenVMS users upgrade their legacy environments to the latest versions of VSI OpenVMS.

    Click here to read the press release.

  • February 8, 2018
    VMS Software, Inc. Selects Swirlds Hashgraph as Secure, Distributed Applications Platform

    The collaboration between VSI and Swirlds allows OpenVMS users to build distributed, cloud-enabled applications on top of the industry’s most reliable operating system, VSI OpenVMS.

    Click here to read the press release.

  • February 6, 2018
    New VSI Webinar Series

    VSI launches a new webinar series starting on Feb 22, 2018 at 10 AM EST (GMT -5:00). VSI senior managers, Eddie Orcutt and Terry Holmes, will present the latest updates on VSI's OpenVMS roadmap and business activities.

    Click here to register for the webinar.

  • January 16, 2018
    New Strategic Partner: Advania

    Bolton, MA, USA, January 16, 2018 – VMS Software, Inc. today announced that Advania (a leading Swedish OpenVMS IT reseller and services provider) has become VSI’s newest reseller and strategic partner.

    Please click here to view the English-language announcement on Advania's web site. Or, click here to view the Swedish press release.

We are taking OpenVMS into the future!
-Duane Harris, CEO VMS Software, Inc.
With a complete long-term solution from HP and VMS Software, customers will now have the flexibility to choose which OpenVMS platform is right for their business...
- Ric Lewis, VP & General Mgr, Enterprise Server Business, HP
The genius of VMS and OpenVMS was that [...] clustering was relatively easy to install and use as well as scalable. That cannot be said for most of the commercial scale-out clustering available on the market today.
- Timothy Prickett Morgan, EnterpriseTech