Harvey Head Cleaner installation is protected by VeriSign. 

Harvey Head Cleaner is a program for Windows with some simple requirements.  Harvey supports Windows XP, Vista, and 2000.  Harvey requires some basic programs included in most Windows systems:

                Windows Installer

                .NET Framework 2.0+

--If you do not have the appropriate pre-requisites, Harvey will install them for you.

30 MB Hard Drive Space

--Harvey Head Cleaner itself is only about 1 MB, but because not all systems have the correct versions of Windows Installer and/or .NET Framework, we've included these in the download.  This increases the size of the download to about 25 MB.

NOTE: For some WIndows versions, particularly XP Home Edition, you may be prompted during installation to install or update Windows Installer/.NET Framework.  Please accept these to allow Harvey smooth installation.