Frequently Asked Questions

Is EZL supported for Windows 10?
Yes! EZL is fully compatible and supported for Windows 10.

EZL is supported for Windows XP/ME/Vista/7/10

Download and Installation
Is internet access required to use EZL?
Internet access is required to use EZL in Demo-mode1.
Internet access is not required to use EZL in Registered-mode2.

No usage statistics, system info, etc is ever collected or transmitted by any EZL Software product.

1 Use of the internet for demo-mode allows us to maintain your 30 day trial.
2 EZL is automatically run in Registered-mode when a valid license file is present.

My firewall is blocking my demo access, do you have another option for a demo trial?
It is possible that your demo mode does not activate due to your firewall or other issues. If this happens please email us at We will provide an alternative method for demo activation.
How long is my license good for?
Once you purchase a license from us, it’s yours. At EZL Software, we disagree with the recent fee-based trend, where you have to pay monthly/yearly for continued software operation.

Licenses purchased from EZL Software come with 1 free year of software updates1. Software downloaded during this period will work with your license indefinitely.

Annual Maintenance Support can be purchased at a discount to extend your software update period past the 1st year.

1 Note, because registered versions of EZL never access the internet without your explicit command to do so, you will not receive automatic notification of available updates. Sign up for our Newsletter for email notification of new releases, or periodically visit our Downloads Page to check the current version.

I am a student. How do I verify my full-time student status with EZL so I can receive student pricing?
Please email a copy of the following documents to prior to purchase. Once verified, we will email you a discount code you can use at check out to receive the full student discount.

Put in subject line: Student verification

Documents needed:

  • Copy of current semester course schedule
  • Copy of school ID
What are the different ways to license the software?
EZL is a node locked license only. This was done to allow users in high security areas or jobs with limited access to internet, the ability to fully utilize EZL.

When licensing your software, you will be asked to provide your drive serial number. Here’s how to retrieve this number:

Windows XP / Vista / 7
1. Open up a command prompt window
(Start Menu > All Programs > Accessories > Command Prompt).

2. Type in: vol. Press enter.
The Volume Serial Number is shown.

Windows 8
1. Open a command prompt window
Right-click anywhere on the Start Screen and then click on “All apps”.
Scroll to the right until you find the “Windows System” section heading.

2. Click on the “Command Prompt” tile. Type in: vol. Press enter.
The Volume Serial Number is shown.

Windows Volume Serial Number

Does EZL have a digital signature?
Yes. DigiCert has verified the source and integrity of our applications using a DigiCert Code Signing Certificate. Users of EZL can have confidence that EZL is safe for download.
Does EZL install any spyware or spamware?
No. EZL is as pure as a freshwater spring on a cold winter day  🙂

There is no hidden code which will harm your computer. We collect no usage statistics. We record no system information.  In short, EZL never phones-home!

EZL was specifically designed with high-security industries in mind. Many of our clients have strict application white-lists, and stringent software requirements. As EZL satisfies these conditions, we pass the security and ease-of-mind on to you.

How do I get help with EZL features?
There are four ways you can get help with EZL’s features:

Can I plot from the Windows command prompt using EZL?
Absolutely. The command to plot data is the same, whether you are plotting from within EZL using the Command Window, or from the Windows command prompt. For example, the two techniques demonstrated below will yield the same result.

For the case on the bottom (i.e. the Windows command prompt), notice that the path of the input file “hist.dat” specified by -f, is not fully-qualified – yet it still works, even though hist.dat does not exist in the current Windows directory (in this case C:\Users\bcf). On this computer, the file hist.dat exists in EZL’s default data path. As such, when EZL tries to plot hist.dat and discovers that there is no such file in the current directory, it then checks the default data path.

To avoid ambiguities, it is good practice to use fully-qualified file paths when using EZL within your own Windows batch scripts.

Command prompt plotting

Can EZL read ASCII time stamps?
We’re glad you asked. Yes it can. There is no longer a need to pre-process your data; no need to manually convert timestamps to numerical values for plotting. This article provides details on EZL timestamp plotting: Nuances of timestamp specifiers