Rainlendar is a skinnable, easy-to-use calendar that resides on your desktop . ClamWin Portable is a portable wrapper for ClamWin and can be modified to. With Portable Apps Suite, (free to use, free to copy, and free to share), PAS is a collection of portable applications which includes, ClamWin Portable (antivirus), Mozilla Portable Edition (calendar/task manager) and Mozilla Thunderbird .. January (23); December (18); November (22). August 11, Top best portable apps of August . Mozilla Sunbird, Portable Edition – Calendar and task management with a familiar ClamWin Portable – Antivirus on the go; Eraser Portable – securely delete files.