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I just have a small question - on the Activations screen in the portal, when we click on an activation we can see the “Last Synched” time. Is this time in the local time of our computer (viewing the portal) or of the computer hosting the license server (it is in a different time zone to us).

Thanks very much.

Kind Regards,
Helen

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If I set this to 2, does that mean the license can be used concurrently on machine A and B? What happens if I try to use it on machine C? Will it be blocked automatically, or will it release machine A or B? If it is blocked, can I release it via the API on machine A or B to allow machine C?

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Since our devices are not connected to the internet, we are looking for a way to make the offline activation flow as convenient as possible for users and service engineers.

One option would be a small internal tool running on a connected laptop (e.g. a service engineer laptop) that:

• uploads the offline activation request generated by the device
• downloads the corresponding offline activation response

From the documentation, it appears that creating an offline activation response is only possible via the admin portal or customer portal, and that this step is not exposed via the Web API.

Is this correct, or am I missing an API-based approach to automate the offline activation response generation?
Are there any recommended or supported alternatives for automating this workflow?

Thanks in advance,
Dominik

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As a result, what they see is they load the plugin, it asks them for their license key and tells them they successfully activated. Then, next time they load the plugin, it prompts them again for their license key. For all our other users, it behaves as you’d expect where once activated, the plugin can detect that it’s already activated via IsLicenseGenuine() and not prompt the user for a license key. I’ve checked and on their computer, the iConf folder does not exist within that directory like it does on mine. In the cryptlex admin panel, it says the user has indeed used one of their activations for their license key, as expected. We’re using node locked per-user license keys, if that matters.

The user is running MacOS Sequoia on an M1 MacBook pro, which is essentially the same machine I was using during development too.

Anyone know what might cause this sort of problem? I’m happy to provide anything to help diagnose the issue.

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What could be the reasons for this?

Do you maybe have some kind of rate-limiting in place that uses GOAWAY to signal over-usage?

We are using Java’s (JDK 21) HttpClient, which keeps an internal pool of connections (30 sec. idle timeout, 100 max. concurrent HTTP/2 streams), just in case this is relevant.

Thanks.

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https://api.cryptlex.com/v3/docs#tag/Releases/operation/GetUpdateRelease

The endpoint takes a ‘key’ parameter that needs to be a valid license key.

Why is this parameter required? Why can’t I just ask for the most recent release for a

• Product
• Channel

without needing to specify a license key?

If I have, for example, 100 devices running a specific version of a (product, channel), I’d like to just make one request to get their most recent release info, not 100 requests, one per device (and license key).

Is there an alternative I could use?

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I am trying to use Cryptlex in a C project, but when I try to authenticate the user, it gets LA_E_AUTHENTICATION_FAILED every time, but when I do the same in my Python project the authentication passes.

I have tried to use the vc14 dlls for x86 and x64 and both gave the samer result, I tried to build with gcc and msvc also and same result for both.

Am I missing something for the C part?

Thanks,

Augusto

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This appears to be a false positive. Could you please confirm that?

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Or do I also have to listen to things like ‘license.renewed’, ‘license.extended’ etc.?

Thanks

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This license has been activated and the activation got an expiration date according to its time + 14 days.

Now, we need to extend this license. How should we proceed?

We cannot modify the Validity as it has been deprecated. If we edit the license expiration date, the expiration date of the activation does not change from the original “activation timestamp + 14 days” and, when our server checks it, license is reported as expired.

Is there a way for us to achieve the license extension in this case?

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First, I will briefly describe my problem. Some time ago, software was prepared for me with a “CRYPTLEX” license protection (this was done by my business partner). The program included a 30-day free trial version. Naturally, after 30 days the program becomes inactive and a full version license must be purchased.

For my testing purposes, the 30-day period turned out to be too short, and I didn’t manage to fully test everything in the program as I had intended. I’ve since parted ways with my partner and have no further contact with him. He told me that if I wanted to use the program again, I could reinstall the operating system, install “our” program from scratch, and the license would be valid for another 30 days.

However, I don’t want to reinstall the Windows operating system. I just want to reset the license so that the 30-day trial period starts again from the beginning.

Questions:

• Where is the program’s start date stored? Is it in the Cryptlex .dll file?
• In which line of code can I reset the program’s start date?
• Does the “Cryptlex” system add anything to the Windows registry during the first launch of the program, and is the start date stored there?
• What are your ideas on how to reset the license most easily for testing purposes? Is there an expert in this field who could advise me?

Thanks.

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However, it seems that there is no user login function in the web API. In this case, how would be a good way to authenticate the user?

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I’ve made sure that I wasn’t accidentally sending in the same userdata myself, but I have check the ids of the objects before sending into the ReleaseUpdateCallback function and from within the function. It seems like whatever the initial arguments passed ot the ReleaseUpdateCallback function were the first time it was used, they will be used from that point forward. Is this intended or am I missing something?

If it means anything I am currently using the 3.32.3 Java build.

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We want to increase the number of floating clients in this activation from 2 to 3.

If they were online, it would take this change at the next sync, but since they are offline what is the best procedure - do they have to deactivate offline the current activation, regenerate the offline request file and send it to us for us to send a new offline response file, or, since the activation details are already known to the system, is there a way to just send a new response file etc?
Thanks and Kind Regards,
Helen

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I am looking for an advice on how to check if a user’s machine has never used trial (AKA: new user), so that on our UI we show “Start Trial” button for them to activate the trial.

When LexActivator.IsTrialGenuine() returns LA_FAIL,

1. does LexActivator.GetTrialExpiryDate() return 0 mean this a new user and safe to show “Start Trial” button to call LexActivator.ActivateTrial()?
2. is it a better to use LexActivator.GetTrialId() and catch LexActivatorException with message “Unknown error” to determine this is a new user?

Thanks in advance,
Mingbo

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_VALIDATE_RETURN(fh >= 0 && (unsigned)fh < (unsigned)_nhandle, EBADF, nullptr);

where fh = -1 and _nhandle = 64.

An exception is not thrown when reverting to the LexActivator v3.31.0 x64_MT static library with Visual Studio v17.14.7 (64bit). The log file is being created.

In the LexActivator change log it appears that v3.31.1 (2025-01-09) fixed a behavior issue with SetDebugMode.

Any idea as to what the issue was and what was changed?

Any idea on how to stop the exception being thrown in v3.32.3, ?

Thankyou.

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I have a client that wants to install the LexFloatServer on Windows Server 2008 32-bit (I know, it’s a very old version but that is what they are using…).

Is it compatible and if so, which LexFloatServer verson would I need to download (currently we are deploying the latest version 4.14.3 which is minimum version Windows 10).

Thanks and Knd regards,
Helen

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I’m currently working on a commercial desktop application that needs to support both Windows and macOS platforms. After reviewing a few licensing solutions, we decided to move forward with Cryptlex due to its flexibility and feature set. However, I’d really appreciate some community input and guidance on best practices for setting it up efficiently across multiple platforms.

Our main goals are:

• Ensure a smooth license activation experience for end-users.
• Handle offline activations and floating licenses if needed.
• Secure the implementation as much as possible against tampering.
• Minimize friction during product updates and license checks.

I’ve already gone through the official documentation and have started implementing LexActivator in our codebase. However, I’d love to hear how others have approached this—especially in terms of:

1. Structuring the license activation logic (e.g., during install vs. first run).
2. How to best store and secure the license data on the client side.
3. Managing multiple versions of the same product (e.g., standard vs. pro).
4. Lessons learned or common pitfalls to avoid.

If anyone has experience deploying Cryptlex in a cross-platform desktop environment and wouldn’t mind sharing insights or even code structure suggestions, I’d be incredibly grateful. I’m currently integrating license management while working on a project that also involves building analytics dashboards. So any tips on managing licensing smoothly across Windows, macOS, and Linux—especially in a data-driven desktop application context—would be extremely helpful.

Looking forward to learning from your experiences and refining our implementation with some real-world advice!

Thanks in advance

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With one of my customers, activation does not work.
The code blocks at this level :

LexActivator.SetTrialActivationMetadata(“key2”, “value2”);

Could this be due to an antivirus or a firewall?

Thanks,

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I have a quick question - when using the update expiration date menu option we can choose a date and the expiration date shows as e.g. “Jun 04, 2025 12:00:00 AM”
Am I correct in understanding this as expiring on the change from the 3rd June to 4th June? (so licence expires at end of the 3rd June) or is it when the clock changes from 4th June to 5th June?

Thanks!

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I’ve been working with Cryptlex for a few months now and things have been running smoothly for the most part. However, I’ve recently run into a situation where I need to better support offline users — specifically, users in environments without internet access who still need to activate and periodically validate their licenses.

I’ve already reviewed the documentation for offline activations and the use of the CLI and API to generate request and response files. The process seems straightforward in theory, but I’m curious about how others are managing this in practice.

Some questions I’d love input on:

1. How are you handling the initial activation flow for offline users? Do you have an automated or semi-automated way to generate the request files and return responses?
2. What’s your strategy for enforcing license expiration or validation periods in offline mode?
3. Are you using LexActivator directly, or wrapping it in your own layer to handle the offline workflow more elegantly?
4. Have you run into issues with tampering or clock rollback when using offline activations? If so, how did you mitigate them?

I’d really appreciate any suggestions, best practices, or even gotchas others have encountered. My goal is to keep the user experience simple while maintaining strong licensing enforcement. As someone who has also managed software logistics in contexts like tableau training in bangalore, I understand how important it is to balance usability with robust protection — especially in environments where users may have limited technical support.

Thanks in advance for your help!

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I read in the documentation that for offline activation of lexfloatserver we can use the command line e.g “lexfloatserver -g --license-key LICENSE_KEY --offline-request FILEPATH” and" lexfloatserver -a --license-key=LICENSE_KEY --offline-response=FILEPATH"

Is there are similar command line for offline deactivation? The only command I’ve seen documented so far is “lexserver -d” but I am am guessing this is just online deactivation since there is no filepath passed. Is it possible by command line or only via the web dashboard?

Thanks very much!
Helen

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Are there any more detailed documentation and examples how this is supposed to be implemented.

I have a maintenance policy having limited time, immediate expiration, AllowMajorVersionUpdates=true, AllowMajorVersionUpdates=true.

I am trying to figure out how this works. Doc tells to call (after SetProductId()) these functions:
SetReleaseVersion();
SetReleasePublishedDate();

In call to SetReleasePublishedDate() I pass the release publish time as Unix epoch time. After these I had a call to GetLicenseMaintenanceExpiryDate() for logging and verification. Maintenance expiration date looks fine.

I have changed the target date/time past the maintenance expiration and still able to update to any SW version; either major or minor increasing. My latest ReleasePublishedDate also exceeds maintenance expiration date…still updates are fine.

Then I just tried to call GetLicenseMaintenanceExpiryDate() between those two
SetReleaseVersion();
GetLicenseMaintenanceExpiryDate()
SetReleasePublishedDate();

Now GetLicenseMaintenanceExpiryDate() returns LA_E_RELEASE_VERSION_NOT_ALLOWED. Expiration date “returned” in this case is 0, which is a bit annoying.
If I ignore the return value of GetLicenseMaintenanceExpiryDate(), validation still says all good.

So, I’m pretty confused how this should be implemented.
How am I supposed to use SetReleasePublishedDate()?
I though that GetLicenseMaintenanceExpiryDate() is just to read&know the expiration time. But it also does some version checking?
GetLicenseMaintenanceExpiryDate() is not even mentioned here in related documents:

Most probably I have totally misunderstood something…therefore advise needed.

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I am trying to create an on-premise floating license with offline borrowing enabled. I can’t find where to set “Allow Client Lease Duration”, it is always false in my network license.

Is it the setting in the license template “Allow Server Lease Duration” (If checked, LexFloatServer is allowed to override the lease duration.) ?

If it is, then everytime I check this box and save and go back into the template it is unchecked again, it doesn’t seem to be saving this setting.

Please let me know where I am going wrong.

Thanks!

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