1)   Advanced X Video Converter 6.0.8.2
Advanced X Video Converter is a comprehensive video conversion software that makes it easy to convert, join and split video files. It supports almost all popular video formats, converts video files to pictures and PowerPoint friendly format as well.

 2)   Kate's Video Cutter (free beta) 1.87
Easy to use tool to extract part of the video and save it in same or different format. Supports AVI, WMV, MOV , DIVX, ASF, 3GP, MP4, MPEG1, MPEG2, VCD-PAL ,VCD-NTSC, SVCD-PAL, SVCD-NTSC, DVD-PAL, DVD-NTSC and other formats.

 3)   Kate's Video Joiner - free beta 3.11
Joins multiple videos of same or different format and save it as single video. Supports AVI, WMV, MOV , DIVX, ASF, 3GP, MP4, MPEG1, MPEG2, VCD-PAL ,VCD-NTSC, SVCD-PAL, SVCD-NTSC, DVD-PAL, DVD-NTSC and other formats.