Requirements: You must have the following VBRUN files installed on your computer system to be able to preview and run some of the Screensavers. Vbrun300.dll Vb40016.dll Vb40032.dll Msvbvm50.dll If you are not whether these files are installed already just click on the Radio button below that says Install VBRUN files now. This will simply just overwrite these these if they are located on your computer system already. For a more in depth description click on the Help button below.