SafeMSI.exe enables program uninstall option in Windows Safe Mode
Safe Mode is a troubleshooting mode for Windows that starts your PC in a limited state. This is useful when you are not able to troubleshoot your PC properly in the normal mode.
However, if you want to uninstall a problem causing program in Safe Mode, normally you can’t without a registry tweak.
This is because, in safe mode Windows starts in a limited state, so the required Windows Installer service isn’t started so most programs can’t be uninstalled.

Windows 7 Systemtray Hider is a simple to use, portable application for Windows 7 that lets you quickly hide and unhide system tray in the Taskbar of Windows 7.