The latest version is v2.7.154 for Windows XP, Vista and Windows 7. Whilst not officially supported ClicksAndWhistles will run on Windows 2000 but as it requires GDI+ you may need to install GDI+ from here. See the changelog for details of updates/bugfixes.
Click the download button below to begin the download (1592 KB). Once downloaded open the .zip file and double-click on "setup.exe" to begin installation. If you are upgrading from an older version all your settings should be preserved.