Once you have installed IRISCompressor you need to activate it. Unactivated copies of IRISCompressor are only available for usefor ten days.

To activate IRISCompressor:

Right-click a file you want to compress, and click IRISCompressor > Compress here in the menu that appears.

You are prompted to activate IRISCompressor. Choose Yes to do so

Fill in your activation key in the Activation key field.

If you downloaded an ESD version of IRISCompressor (Electronic Software Delivery), the activation key was sent to you by e-mail.

If you purchased a regular version you find the activation key inside the product box.

Then click Next and follow the on-screen instructions.

Note that an internet connection is required to complete the activation. 

In case you do not have an internet connection on this machine, but still want to do the activation, then click Next anyway.

A new dialog box appears. Select Manual Activation and follow the instructions described there.

In case you need to contact IRIS support team, please submit your enquire here after checking with the articles published in IRIS FAQ website.