Important: Updating your activated HYDRUS:

If you have activated a previous version of HYDRUS and you want to install a new version (for example 1.07) then we recommend you to install it on the same hard disk but into a different directory. For example, if your current HYDRUS is installed in C:\Program Files\PC-Progress\HYDRUS 1.06, and you want to install the new version to C:\Program Files\PC-Progress\HYDRUS_107, then new version will be activated automatically. If you decide to install 1.07 to a different hard disk or a different computer then you will need new activation codes for it. In such case you should first deactivate your old HYDRUS and send us (or to your local reseller) the deactivation file before asking for new activation codes.