For prices, please visit: https://www.vidinli.net/store2/index.html#/h?cid=16
(or contact us)

Note that these are per support, per installation prices. A few problems/questions in a reasonable time interval may be seen as a single support request.
Ehcp Professional version details: https://ehcp.net/?q=node/1808

Note that normal ehcp software is still free. (Only professional version is paid)

If you need free support about ehcp: http://www.ehcp.net/?q=node/366
If you need paid/professional support: http://ehcp.net/?q=node/1518 (here)
If you want to support ehcp: http://ehcp.net/?q=node/25