It's part of Dynazip and company is out of bussiness.

>I use dzactx.dll in my applications to zip data.
>I have to reinstall my operating system and I am looking for the source for this dll. I'm also looking for some support so am trying to figure out who made that control. I thought it was WinZip but they say it is not theirs.
>Does anyone know who created this control? I purchased it many years ago but can't find my documentation.
>
>Thanks!