Then can even test or preview the screensaver from the App without installing. After building, just transfer the ZIP file to others and they can double click it to unzip the file, and double-click the App to install the screensaver. IScreensaver 6 and later builds a single mac. Hint: When building, be sure to leave the 'Zip afer Build' option OFF for Windows screensavers. Then can even test or preview the screensaver from the EXE without installing. After building, just transfer the EXE file to others and they can double click it to install the screensaver. IScreensaver 6 and later builds a single-file EXE installer which is very simple to use. Note: If you or your IT department are installing screensavers on multiple computers, please follow our Once you have built a screensaver, you will need to get it to others for testing and/or distribution to your end users, customers, or clients.