The OAK4 Downloader is a small (359Kb) utility which will download either of the larger installers, and is capable of resuming the download if it is interrupted for any reason, deliberately or otherwise.
This is useful for unreliable connections, because if the connection breaks, you can resume the download from where it ended, rather than restarting it.
This is also useful for slow connections, as the download can be paused and resumed at a later time.
Once you fill in your details and click the Download Now button, the download of this utility will begin, and you should soon afterward be presented with the option to Run, Save or Cancel it. The easiest option is to click Run.
The support page and the online documentation describe what to do if OAK does not install easily.
The installers downloaded by this utility provide a fully functioning version of the software. It will function for 30 days from first use. After this period has expired, you must purchase a license and register to continue the use of the software.
Use of OAK is subject to the standard license conditions and you are required to agree to this before downloading your copy of the software. Downloading, installation, or use, of OAK is your acceptance of this License Agreement and Warranty.
I have read the License Agreement and accepted its terms and conditions and I would now like to download a copy of the Operis Analysis Kit for evaluation.
If you have any questions at all, please do not hesitate to contact OAK support.