This evaluation verion is fully functional and will run for 30 days, after which it will still run in the free file viewer mode. If you need more time to evaluate it, you can request a trial extension by sending email to essentialftir@tds.net
If you are a licensed user, you can upgrade the software by installing a newer version. There is no need to uninstall your current version. Your data and settings will be left untouched.
The manual is included in the Essential FTIR download as a windows help file. The manual is also available as a .pdf file on the Tools Page.
Additional plugins and tools are available for download on the Tools page.