Terms of Service

1. What the Software does

OpenMSG is a Windows application that opens and displays Microsoft Outlook .msg email files, including their attachments, without requiring Microsoft Outlook. Message files are processed locally on your device.

2. Licence grant

Subject to these Terms, Corporate App Works Pty Ltd grants you a limited, non-exclusive, non-transferable, non-sublicensable, revocable licence to install and use the Software on Windows devices:

1. Personal use — free of charge, for personal, non-commercial purposes; or
2. Evaluation use — free of charge, for a reasonable period to evaluate the Software before purchasing a commercial licence; or
3. Commercial use — only under a valid commercial licence purchased under Part B.

"Commercial use" means any use by or for the benefit of a business, government body, non-profit, or other organisation, including use by employees or contractors in the course of their work.

Entity Restriction: The commercial licence is granted solely to the specific legal entity named on the order or invoice. Subsidiaries, parent companies, and global affiliates of the purchasing entity are not covered by this licence. Affiliated entities must purchase their own licence blocks or true-up the global user count, unless express written permission has been granted by Corporate App Works Pty Ltd.

MSP Restriction: Commercial licences are granted on a per-organization basis. Managed Service Providers (MSPs) and IT consultancies must not distribute or split a single licence across multiple client organizations unless expressly permitted by us in writing. The 50-seat enterprise minimum applies independently to each distinct end-user organization.

The Software is licensed, not sold. We retain all rights not expressly granted.

3. Honor-based licensing

The Software does not use licence keys, activation servers, or other technical enforcement. Commercial licensing operates on an honor basis. You are responsible for ensuring that your organization holds a licence covering all users making commercial use of the Software. We reserve the right to audit organizational usage via our telemetry and request that your organization true-up its licensing to match actual usage.

4. Restrictions

Except to the extent a restriction is prohibited by applicable law, you must not:

1. copy (other than for reasonable backup), modify, adapt, translate, or create derivative works of the Software;
2. reverse engineer, decompile, or disassemble the Software, or attempt to derive its source code, unless you have obtained our specific prior written permission (for example, for authorized internal security assessments);
3. sell, resell, rent, lease, lend, distribute, or otherwise commercialise the Software or access to it;
4. remove, obscure, or alter any proprietary notices in the Software;
5. use the Software to develop a competing product;
6. use the Software in violation of any applicable law, or to open, distribute, or act on content whose possession or use is unlawful;
7. use the Software in any environment where its failure could lead to death, personal injury, or severe physical or environmental damage (the Software is not designed for high-risk or safety-critical use);
8. circumvent, disable, or interfere with security-related features of the Software, except through the documented administrative configuration options; or
9. use the Software in conjunction with Robotic Process Automation (RPA) tools, automated batch processing, headless environments, or scraping scripts. Commercial licences strictly cover human users only. Any automated, machine-driven, or non-human usage of the Software is explicitly prohibited unless you have obtained our specific prior written permission.

5. Microsoft Store

Where you obtain the Software through the Microsoft Store, your use is also subject to the Microsoft Store Terms of Sale and Usage Rules. If there is any conflict between those terms and these Terms in respect of the Software itself, these Terms prevail to the extent permitted.

6. Security features are assistive only

The Software includes security-oriented features such as HTML sanitisation, blocking of executable, spoofed, and other potentially unsafe attachments, blocking of external (third-party) content by default, and disabling of JavaScript in email bodies by default.

These features are provided as an aid only. They are not a substitute for antivirus or endpoint security software, and we do not warrant that they will detect or block all malicious, deceptive, or unwanted content. Email files and their attachments originate from third parties and may contain malicious code, phishing content, or other harmful material. You are solely responsible for:

1. maintaining appropriate antivirus and endpoint protection;
2. deciding whether to open any email file or attachment;
3. any action you take based on the content of an email displayed by the Software (including clicking links, loading external content, or opening attachments); and
4. any consequences of overriding a security warning or default protection.

No Cryptographic Validation: The Software does not validate S/MIME digital signatures, encrypt or decrypt message content, or verify certificate chains. Malformed signatures may simply display as errors, and you should not assume any cryptographic validation is occurring.

No Liability for Malicious Payloads: The Software is a viewer, not a cybersecurity or endpoint protection product. You acknowledge that email files and attachments frequently contain zero-day exploits, ransomware, and malicious scripts. You are solely responsible for scanning and securing all files before opening them. You explicitly waive any right to bring a claim, and you indemnify Corporate App Works Pty Ltd against any claims, for network damage, data loss, ransomware infection, or business interruption resulting from malicious payloads executed through the Software.

7. Administrative configuration

The Software supports configuration by IT administrators via Windows registry keys and Group Policy, including options that relax or disable security protections. If you or your administrator alter the default configuration, you do so entirely at your own risk, and we have no liability for any consequences of the altered configuration.

8. Local files and data

To display a message, the Software extracts email bodies, inline images, and attachments to a temporary folder on your device. The Software attempts to clean up these files, but temporary files may persist. You are responsible for the security of your device and its storage.

9. Updates and changes

We may release updates, may add, change, or remove features, and may discontinue the Software at any time without liability to you. Updates delivered through the Microsoft Store may install automatically depending on your settings.

10. Third-party components

The Software includes third-party and open-source components (including components for compound-file parsing, RTF conversion, and the Microsoft Edge WebView2 runtime), which are subject to their own licence terms. Nothing in these Terms limits your rights, or expands our obligations, under those third-party licences.

No IP Indemnification: The Software relies on third-party libraries (including those provided under the MIT License and the Microsoft Edge WebView2 runtime). The Software is provided strictly without any warranty of non-infringement. Corporate App Works Pty Ltd will not indemnify, defend, or hold you harmless against any claims, lawsuits, or demands alleging that the Software, or its underlying third-party components, infringe on the intellectual property rights, patents, or copyrights of any third party.

11. Telemetry

The Software transmits limited usage analytics and crash reports as described in the OpenMSG Privacy Policy. These can be disabled by administrators via registry configuration, and are disabled in Enterprise and Evaluation builds. Email content is never transmitted to us.

Deployment Liability and Privacy: Corporate App Works Pty Ltd provides specific Enterprise builds that have telemetry permanently disabled to comply with corporate privacy requirements. If your organization chooses to deploy the consumer version of the Software (which transmits telemetry) across an enterprise environment, you assume total liability for all resulting data protection and privacy compliance. You agree to indemnify and hold Corporate App Works Pty Ltd harmless against any regulatory fines, employee claims, or legal actions (including under the GDPR or CCPA) arising from your failure to deploy the zero-telemetry Enterprise build.

12. Evaluation builds

Evaluation builds are provided "as is" for internal, isolated sandbox evaluation only. They display a prominent evaluation watermark and have telemetry permanently disabled. You must not bypass certificate design or use Group Policy to deploy an Evaluation build into a production Standard Operating Environment (SOE). Deploying an Evaluation build in a production environment is a material breach of these Terms and will result in an immediate invoice for our maximum enterprise user tier, payable upon receipt. Sections 13–15 apply to evaluation builds without qualification.

1. Ordering and Resellers

Commercial licences are purchased directly from Corporate App Works Pty Ltd or via our authorized Merchant of Record (e.g., Paddle). If you purchase via a Merchant of Record, their terms and conditions govern the financial transaction, billing, and taxes. However, this agreement strictly governs your installation, use, and licensing of the Software.

Definition of a User: For licensing purposes, a "User" is any named individual or network profile with the ability or permissions to access the Software. In shared, virtualized, or session host environments (such as Citrix or Azure Virtual Desktop), your organization must hold a licence for every user capable of accessing the environment where the Software is installed, regardless of actual usage. If you wish to license only a subset of users in a shared environment, you are solely responsible for implementing technical controls (e.g., AppLocker, FSLogix, or Group Policy) to restrict access to the Software strictly to licensed users.

2. Subscriptions and renewal

Annual subscriptions run for 12 months from the start date stated in the order. Subscriptions do not renew automatically. Renewal occurs only by mutual agreement. If a subscription lapses without renewal, your right to commercial use ends.

Perpetual licences: Where a perpetual licence is offered and purchased, you receive an ongoing right to use the version of the Software current at the date of purchase, together with 12 months of updates and support from the purchase date. For Perpetual Licenses, the Terms of Service in effect at the time of purchase govern your use of that specific version of the Software indefinitely. If you purchase a support extension or upgrade to a new major version, you must agree to the Terms of Service current at the time of that renewal or upgrade.

3. Fees and taxes

Fees are stated and payable in USD unless otherwise agreed, and are exclusive of applicable taxes. Except as required by law or expressly stated in these Terms, fees are non-refundable.

4. True-up and licence verification

If your actual number of users exceeds your licensed tier — including as a result of a merger, acquisition, or domain consolidation — you must immediately notify us and upgrade to the appropriate tier. We will invoice the difference for the current period. If an acquisition does not result in exceeding the purchased user tier, your existing licence remains valid.

No more than once in any 12-month period, we may ask you to confirm in writing the number of users making commercial use of the Software.

5. Support and Maintenance

While you hold a current commercial licence (or current 12-month maintenance entitlement for perpetual licences), we will provide reasonable-efforts email support. Support is strictly restricted to named IT administrators at your organization. The original purchaser of the licence is designated as the default named administrator. Direct support requests from your end-users are explicitly prohibited. While our support staff may occasionally respond to an end-user query at their sole discretion, we have no contractual obligation to do so. Support and bug fixes are strictly "best effort," with no guaranteed resolution timeframes, and are conditional on our ability to reproduce the issue in our own environment.

Post-subscription and Out-of-window Support: If your annual subscription lapses, you must immediately uninstall the Software from all devices and deployment environments. For perpetual licenses outside their initial 12-month support window, we have no obligation to provide patches for breakages caused by underlying OS architecture changes, subject only to non-excludable statutory guarantees (such as the Australian Consumer Law).

6. Termination of commercial licences

We may suspend or terminate a commercial licence if you materially breach these Terms and fail to cure within 14 days of notice. You may terminate at any time by ceasing use; fees already paid are not refunded.

1. Use of the Website

The Website, including its text, graphics, documentation, and downloads, is owned by or licensed to Corporate App Works Pty Ltd. You must not scrape, mirror, or republish the Website, probe or attack it, or use it for any unlawful purpose.

2. Information only

Content on the Website is provided for general information, is not advice, and may become outdated.

3. Third-party links and services

The Website and the Software may link to third-party sites and services (including the Microsoft Store). We are not responsible for third-party sites or services and do not endorse them.

13. Disclaimer of warranties

To the maximum extent permitted by applicable law, the Software, the Website, and all related services are provided "as is" and "as available", without warranties of any kind, whether express, implied, statutory, or otherwise, including any implied warranties of merchantability, fitness for a particular purpose, title, non-infringement, accuracy, or quiet enjoyment.

14. Limitation of liability

To the maximum extent permitted by applicable law:

1. we will not be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages. This explicitly includes, without limitation, any claims for business interruption, lost employee productivity, loss of profits, loss of anticipated savings, or the cost of hiring emergency IT contractors or substitute software services, even if we have been advised of the possibility of such damages;
2. we will not be liable for any loss or damage arising from: (a) the content of any email file or attachment, including malicious, deceptive, or unlawful content; (b) your decision to open, save, print, or act on any file; (c) configuration changes made by you; (d) unauthorised access to your device; (e) loss of temporary files; or (f) third-party software; and
3. our total aggregate liability arising out of or relating to these Terms, the Software, and the Website will not exceed the greater of (a) the amounts you paid to Corporate App Works Pty Ltd for the Software in the 12 months before the event giving rise to the claim, and (b) USD $50.

15. Consumer law; non-excludable rights

Nothing in these Terms excludes, restricts, or modifies any consumer guarantee, right, or remedy that cannot lawfully be excluded, restricted, or modified — including under the Australian Consumer Law.

16. Indemnity (business users)

If you use the Software or Website in the course of a business, you will indemnify and hold harmless Corporate App Works Pty Ltd and its officers, employees, and contractors from and against any claims, damages, liabilities, costs, and expenses arising from: (a) your breach of these Terms; (b) your use or misuse of the Software; (c) content contained in files you open; or (d) your violation of applicable law.

17. Feedback

If you provide feedback, you grant us a perpetual, irrevocable, worldwide, royalty-free licence to use it without restriction.

18. Termination

These Terms remain in force while you use the Software or Website. We may terminate your licence immediately if you breach these Terms. Sections 13–17, 19, and 21 survive termination.

19. Export and sanctions compliance

You must comply with all applicable export control and sanctions laws, and you represent that you are not located in, or a resident of, any jurisdiction to which such laws prohibit us from providing the Software. If Corporate App Works Pty Ltd detects or reasonably suspects that the Software has been deployed, distributed, or accessed within a comprehensively sanctioned jurisdiction or by a sanctioned entity, we reserve the right to immediately terminate your licence and this agreement without notice, without an opportunity to cure, and without refund.

20. Changes to these Terms

We reserve the right to modify these Terms from time to time. The current version will be posted on the Website with its "Last updated" date.

For Commercial License Holders: For active commercial subscriptions and perpetual licenses, the Terms of Service and Privacy Policy in effect at the time of your purchase or last renewal govern your use for the remainder of your active term. Any material updates to these Terms or the Privacy Policy will automatically take effect upon your next subscription renewal or purchase of a support extension.

For Personal and Evaluation Users: Your continued use of the Software after changes are published constitutes your acceptance of the updated terms.

21. Governing law and disputes

These Terms are governed by the laws in force in Victoria, Australia, without regard to conflict-of-laws rules, and the parties submit to the exclusive jurisdiction of the courts of that jurisdiction.

22. General

These Terms (together with the Privacy Policy and any written order) are the entire agreement between you and us. If any provision is held unenforceable, it will be modified or severed.

23. Contact

Corporate App Works Pty Ltd (ABN 82 698 098 369)
Victoria, Australia
Email: support@corporateappworks.com
Website: https://openmsgviewer.com