There was a download of NxFilter 4.7.0.8 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus. This free program is a product of NxFilter. The following versions: 4.3, 3.4 and 3.1 are the most frequently downloaded ones by the program users. This PC program is suitable for 32-bit versions of Windows XP/Vista/7/8/10/11. The program belongs to Internet & Network Tools.
From the developer:
NxFilter is a high performance DNS filtering software designed to be used in an enterprise environment.
It is not a personal webfilter or a simple AD blocker. NxFilter provides a rich set of features
and many of them are the ones you only can find in commercial filtering appliances.
It is a full featured DNS filter being able to handle several thousand users easily.
You may want to check out more software, such as COMODO Firewall Pro, SecureCRT or NetCafe, which might be similar to NxFilter.