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Register for Knowledge Center - How To Find Your License Server's Host ID

To register in Knowledge Center you need to enter the Host ID of your license server as it is associated with your company's support contract. Below you will find specific information about where and how to find the license server Host ID used to secure your licenses as well as common errors to avoid when using it to register for an account with the Knowledge Center.

Important Note!

The examples in this document use fictitious Host IDs. None of the Host IDs in this document are your license server Host ID and they will not grant supported user access to Knowledge Center.

What Is A Host ID?

 Click to Expand - What is a Host ID?

Your Knowledge Center Host ID is the unique ID of your license server machine used to generate your licenses and is associated with your support contract. 'Host ID' is a generic term for any of the following IDs used to license Agilent EEsof EDA software:

  • A computer's CPU ID
  • A computer's MAC Address
  • The FlexNet ID printed on your hardware key

Knowledge Center Host IDs are limited to the IDs mentioned above. Host IDs are never a product number, host name, email address, port@host, Agilent Software Manager (ASM) License ID, or any other type of information.

Where Can I Find My License Server's Host ID?

There are four common ways to find your license server's Host ID.

Method 1. My Support ID

 Click to Expand - Method 1

Starting with products released after July 2013, the License Manager displays "My Support ID", which is used for registering for Knowledge Center or for contacting Agilent EEsof Technical Support. The Support ID is the same as the Host ID of the license server which issued the license used to start your Agilent EEsof product. The Support ID can be used wherever a Host ID is required.

The License Manager can be found under the Tools menu for the product. Select the My Support ID menu.

Select image for larger view

The Support ID can be copied to memory and inserted to the registration form for the Host ID.

Method 2. The Email That Delivered Your EEsof Licenses

 Click to Expand - Method 2

If you requested your EEsof licenses, you should have received an email containing your licenses. In this email, you will see a line that looks something like this:


The last item on this line is the Host ID (shown in red above)

If you were not the person who requested your EEsof licenses, you may not have access to this email. In that case, you need to look at the license file on your license server.

Method 3. The License File On Your License Server

 Click to Expand - Method 3

EEsof licenses are served by a license server. Sometimes the license server is running on your machine and sometimes it is running on a remote machine that serves licenses within your company.

If your licenses are served by a license server other than your machine, then you will need to be able to access the license server and the license file on it. You may need help from your system or license server administrator to do this.

On the license server, there is a license file that contains your EEsof licenses. This file is often named with a .lic extension. A very common name for the license file is license.lic, but it can be different. The license file contains SERVER, VENDOR and INCREMENT lines. Your Host ID is contained in the SERVER and INCREMENT lines. Let's look at an example of each.


The third item on the SERVER line is the ID used to generate your licenses. This is the Host ID for EEsof. Here's an example SERVER line:

SERVER this_host 012345ABCDEF 27005

In this example, the third field contains the Host ID (shown in red above).

Common Error To Avoid!

You only want the ID contained in the third field of the SERVER line. A common error is to copy the entire SERVER line or more than just the third field and paste that into the Host ID line in the Knowledge Center registration form.


If you look at the INCREMENT lines, you will see that each of them contain a VENDOR_STRING= section. For example:

INCREMENT e_sim_linear agileesofd 2.9 15-feb-2013 5 VENDOR_STRING="012345ABCDEFP=#8D=#W2306EP,Linear_Simulator_Element; e_sim_linear : CRJDCHN 2AZUBKB HAFEGCT Z2DLFKW 2MWKJD2 YMJYEJT YZY2ZE" ISSUER=LICENSEID=2786600 START=25-Oct-2012 SIGN="016B 01AE 5EC2 286A A96E ADF2 5326 339C 7DAA DA3A 0302 A237 4CF3 51C9 5DF5 0ABA 6BB0 39BC 7C07 EB77 AF86"

In this example, the Host ID is the part after VENDOR_STRING=" and before the 'P' (shown in red above).

Common Error To Avoid!

When copying the Host ID from the VENDOR_STRING= section, make sure you don't accidentally copy the letter 'P' that immediately follows the Host ID. It's easy to do and is a common error when registering in Knowledge Center.

Method 4. Run the CPU ID Detection Tool

 Click to Expand - Method 4

If your machine is the license server, you can run the CPU ID Detection tool to determine its Host ID.

  • Run the CPU ID Detection ToolNOTE: use only if your license was issued and secured to your local computer. This should not be used for remote license servers.
  • select "Current Computer" and "MAC Address"
  • copy the detected ID number to memory and paste it in the registration form
Common Error To Avoid!

The CPU ID Detection Tool will help you find the Host ID of your local machine. If your license server is running on a remote machine, your local Host ID will not be recognized by Knowledge Center. For remote license servers, use Method 1 or Method 2 described above. Make sure you only use the CPU ID Detection Tool if your license server is running on your local machine.

Example Host IDs


CPU IDs are 8-digit hexadecimal strings that look something like this: A123B456


Remove any spaces or dashes from the CPU ID string when entering it into the Host ID field of the Knowledge Center registration form.

MAC Address

A MAC address is a 12 character hexadecimal string. For example: 123456ABCDEF


Remove any spaces or dashes from the MAC address when entering it into the Host ID field of the Knowledge Center registration form.

Hardware Key FlexNet ID

The FlexNet ID on your hardware key. Hardware key FlexNet IDs start with "9-" or "10-". For example: 9-0123ABCD or 10-0123ABCD


Do not include 'FLEXID=' with your hardware key FlexNet ID. For example, if your license file contains "FLEXID=9-0123ABCD", you only want to enter the '9-0123ABCD' and omit the 'FLEXID='.

Special Instructions

University Students and Instructors

If you are registering as part of a university, please contact the professor or system administrator responsible for setting up the Agilent EEsof EDA software license and ask for the Host ID of the license server. Refer to the instructions given in this document for locating the Host ID.

If you are representing a university who is interested in Agilent EEsof EDA design software, please visit the

Agilent EEsof EDA University Educational Support Programs