WinCDEmu is an open-source tool that allows you to mount ISO, CUE, NRG, MDS/MDF, and other disc image formats as virtual drives in Windows. The "Virtual Bus" driver is essential for enabling the mounting functionality. To install it, simply download WinCDEmu from its official site, run the installer, and choose to install the "Virtual Bus" driver during the setup process. After installation, you can right-click on ISO files and mount them as virtual drives. Would you like more detailed steps for the installation process?