NISDownloader.exe

We let our version of NIS expire without renewing.  Bought a new version.  When we hit the download button the following error message comes up:  NISDownloader.exe This file could harm your computer.  What's going on?  Thanks

We let our version of NIS expire without renewing.  Bought a new version.  When we hit the download button the following error message comes up:  NISDownloader.exe This file could harm your computer.  What's going on?  Thanks