I.R.I.S. IRIScompressor Standard - Manual (Page 7)

IRISCompressor
TM
– User guide
7
It is not recommended to have more than one version of
IRISCompressor installed at the same time. In case you want to
upgrade to a superior version, always uninstall your current version
first before installing the superior version. See the topic Uninstall
for more information.
A
CTIVATION
Once you have installed IRISCompressor you need to activate it.
Unactivated copies of IRISCompressor are only available for use
for 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.