Downloading NetCheck 4.0 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The most popular versions of the tool are 4.0, 3.5 and 1.2. We recommend checking the downloaded files with any free antivirus. NETCheck.EXE or NetCheckBeta.exe are the frequent file names to indicate the NetCheck installer. NetCheck lies within Development Tools, more precisely IDE. This software was originally designed by Dummysoftware.
From the developer:
NETCheck is a utility that .NET developers can use within their own application to verify if the required version of the .NET framework is installed and allow the user to download it.
Software developers need all types of users to be able to run their products. If you develop a .NET framework program and the user does not have .NET installed, he will receive a Windows error message, which is not the first impression your users should see.
You may want to check out more software, such as DotNetChecker, which might be related to NetCheck.
Network tools