help! garbled registry entry

[tst]

hi everyone. i really could use your help. i am using an HP pavilion n3310 notebook running windows XP. i have lost my desktop/taskbar/startmenu along with "user accounts" control panel, device manager & system information, help, along with all windows media player & all real player functionality (although my 1x1 player and winamp plays music) and video capabilities across the board. i went looking around in my registry and i found the following garbled entry:

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\櫈"Ā ࣨ俠⃐㫪ၩ�〫鴰䌯尺_auto_file]
@=""

[HKEY_CLASSES_ROOT\櫈"Ā ࣨ俠⃐㫪ၩ�〫鴰䌯尺_auto_file\shell]

[HKEY_CLASSES_ROOT\櫈"Ā ࣨ俠⃐㫪ၩ�〫鴰䌯尺_auto_file\shell\open]

[HKEY_CLASSES_ROOT\櫈"Ā ࣨ俠⃐㫪ၩ�〫鴰䌯尺_auto_file\shell\open\command]
@=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00 ,52,00,6f,00,6f,00,74,00, 25,\
00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00 ,32,00,5c,00,73,00,64,00, \
62,00,69,00,6e,00,73,00,74,00,2e,00,65,00,78,00,65 ,00,20,00,22,00,25,00,31, \
00,22,00,00,00
------------------
could someone tell me what the entry should be, as i am sure this cannot be correct and is at least part of my problem. thxs tst :-(