Frequently Asked Questions

We have shared some common questions below. If you still need assistance, please contact us at or 877.333.3926.

NetSim Network Simulator


The message NetSim License has expired might be displayed in NetSim for any of the following reasons:

  • NetSim has not been activated.
  • An e-mail address for a valid Boson account has not been entered in the E-mail Address field.
  • The password for a valid Boson account was incorrectly typed in the Password field.
  • The activation key entered in the Activate Keys dialog box is invalid or typed incorrectly.
  • NetSim has not been able to access the Internet for an extended period of time.
  • An activation key has not been purchased for NetSim.
You can access the NetSim Activate Keys dialog box by clicking Help > Activate Keys from the NetSim menu bar. If you have a valid activation key and are still unable to activate NetSim, you should contact Boson customer support by submitting a support ticket.

See also Product End-of-Life Information.

Boson has license options for academic, organizational, and corporate clients. We do not sell licenses that can be shared, and licenses cannot be transferred from one registered user to another. Each end user must have his or her own license. If you would like to inquire about licenses for training employees or students, please see the Boson Organizational & Volume Sales page of our website.

If you have not done so already, you will need to purchase an activation key. Activation keys and instructions can be found on the purchase receipt. You can view your receipt(s) at any time by logging in to your account and selecting the Purchase History tab.

Boson strives to deliver content and technology that accurately reflects the current certification environment. Due to certification updates and technology innovations, products mature over time and are replaced with modern versions. The purpose of this document to is provide information regarding product retirement or products reaching end-of-life. Upon retirement there will be no updates of any kind to the product. Upon end-of-life, technical support or product activations will not be available. Read more Product-End-of-Life Information.

Pricing / Quotes

Yes, Boson does offer discounts, called Special Offers, on certain products based on your product purchase or activation history on our site. To find your Special Offer, please create or log in to your Boson account on our site and review the products listed on the Special Offers tab.

Yes, the prices listed on our website are shown in United States dollars.

Purchasing / Refunds

ExSim-Max Practice Exams
No returns or exchanges will be accepted or refunds granted for products purchased and delivered electronically once you have activated, downloaded or accessed the full version, except under the terms and conditions of the Boson No Pass, No Pay ExSim-Max Guarantee.

If the product has not been activated, downloaded or accessed, the customer has thirty (30) days from the date of purchase to return the product for refund. All sales are final thirty (30) days from date of purchase.

If the ExSim-Max product was discounted or part of a kit, the refund will be prorated to reflect the actual purchase price of the product.

NetSim Products
If you are not satisfied with your NetSim purchase, you may return or exchange the purchased product within the first forty-eight (48) hours (the "Grace Period") after you have accessed the full version, provided the activation occurred within thirty (30) days from the date of purchase. No returns or exchanges will be accepted or refunds granted following the initial forty-eight (48) hours from product activation.

If the product has not been activated, the customer has thirty (30) days from the date of purchase to return the product for refund. All sales are final thirty (30) days from date of purchase.

If the NetSim product was discounted or part of a kit, the refund will be prorated to reflect the actual purchase price of the product.

If you are outside the states of Tennessee and Florida, our website will not charge sales tax on your order. If you are a tax-exempt entity in one of the two states listed above, please call us at 877-333-EXAM (3926), and we’ll be glad to assist you with these orders.

Boson accepts MasterCard, Visa, American Express and Discover credit cards for online purchases.

If you complete your purchase online by using an approved credit card, you should receive an e-mail that contains your receipt, download link(s), and activation key(s) within minutes from If you do not receive that email in your inbox, please check your junk mail folder for this message.

Boson also accepts check or money order payments at checkout. If you purchase a Boson product by using a check or money order, please follow the instructions at checkout for quickest service. Please mail a copy of your checkout form along with your check or money order to the following address:

Boson Software, LLC
25 Century Blvd.
Ste. 401
Nashville, TN 37214-4623

Boson processes orders paid by money order as soon as the funds are received. Processing of orders paid by corporate or personal check may be held for five (5) business days to allow the funds to clear your bank.

Purchase orders are accepted from educational institutions and organizations only with Net 30 Day terms and at Boson’s discretion.

Wire transfer payments will be accepted; however, we will not place your order until we have received the funds from your bank. There is a $30.00 fee for using wire transfer. If you wish to pay via wire transfer, please notify us at so that we may provide wire transfer instructions.

You can view your purchase history on our site by logging in to your Boson account, pointing to the User icon, and then clicking Purchase History.

Boson will gladly invoice academic, organizational, or corporate customers within the United States, provided they submit a purchase order. All international orders must be paid for at the time of purchase. You can make payment via credit card (by using an offline card form), and we will place the order for you when we have the card information. You can also pay via wire transfer, but we will not place the order until we have received the funds. There is a $30.00 fee to pay using wire transfer.

Sales tax is only assessed for orders placed by customers in Tennessee and Florida.


Minimum and Recommended Requirements:

NetSim Online App:

  • Supported operating systems: Windows 11, Windows 10, Windows 8, MacOS 10.10+, or a Debian based Linux
  • A web browser that supports JavaScript ECMA 6
    • Chrome 75+
    • Firefox 70 +
    • Safari 6.2.8
    • Etc.
NetSim Download version:
  • Supported Operating Systems: Windows 11, Windows 10, Windows 8
  • NET Framework: Microsoft .NET Framework Version 4.5
  • Processor: 1-GHz Pentium processor or equivalent (Minimum); 3-GHz Pentium processor or equivalent (Recommended)
  • RAM: 512 MB (Minimum); 2 GB (Recommended)
  • Hard Disk: At least 200 MB of available space
  • Display: 1024 x 768 or higher resolution; 32-bit
  • Active Internet connection

The NetSim demo is a fully functional version of NetSim that has a limited command set. The purpose of the NetSim demo is to allow you to evaluate the applications included in the NetSim suite and how they interact with each other. You can download a demo of NetSim from the Boson downloads page of the Boson website.

Boson does not have a set interval for releasing updates. Software updates are released only when significant changes are made to NetSim. For example, the resolution of a major bug or the addition of new features would prompt a software update.