ISS里出现了好多的304，怎么办呢

2010-12-23 02:19:50 W3SVC253 122.200.77.20 GET /CuteSoft_Client/CuteEditor/Load.ashx type=theme&file=r1.png&theme=Office2003 80 - 61.135.195.32 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+.NET+CLR+2.0.50727) 304 0 0 190
2010-12-23 02:19:50 W3SVC253 122.200.77.20 GET /CuteSoft_Client/CuteEditor/Load.ashx type=theme&file=b1.gif&theme=Office2003 80 - 61.135.195.32 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+.NET+CLR+2.0.50727) 304 0 0 190
2010-12-23 02:19:54 W3SVC253 122.200.77.20 POST /admin_sheet/SelectList.asmx/GetCityContents - 80 - 61.135.195.32 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+.NET+CLR+2.0.50727) 200 0 0 1801
2010-12-23 02:20:59 W3SVC253 122.200.77.20 GET /CuteSoft_Client/CuteEditor/Load.ashx type=image&file=1x1.gif 80 - 61.135.195.32 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+.NET+CLR+2.0.50727) 304 0 0 190
2010-12-23 02:20:59 W3SVC253 122.200.77.20 GET /CuteSoft_Client/CuteEditor/Dialogs/Load.ashx type=themecss&file=dialog.css&theme=Office2003 80 - 61.135.195.32 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+.NET+CLR+2.0.50727) 304 0 0 190
2010-12-23 02:20:59 W3SVC253 122.200.77.20 GET /CuteSoft_Client/CuteEditor/Dialogs/Load.ashx type=style&file=IE.css 80 - 61.135.195.32 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+.NET+CLR+2.0.50727) 304 0 0 190
2010-12-23 02:20:59 W3SVC253 122.200.77.20 GET /CuteSoft_Client/CuteEditor/Dialogs/Load.ashx type=dialogscript&file=DialogHead.js 80 - 61.135.195.32 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+.NET+CLR+2.0.50727) 304 0 0 190
2010-12-23 02:20:59 W3SVC253 122.200.77.20 GET /CuteSoft_Client/CuteEditor/Dialogs/Load.ashx type=dialogscript&file=Dialog_TagHead.js 80 - 61.135.195.32 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+.NET+CLR+2.0.50727) 304 0 0 190
2010-12-23 02:20:59 W3SVC253 122.200.77.20 GET /CuteSoft_Client/CuteEditor/Dialogs/Tag.aspx Tag=A&Tab=&setting=!3wEWAgUFemgtY24FAyRhMdq4sh!36nqXxMBKXSvHM0SzSpqe8&Theme=Office2003& 80 - 61.135.195.32 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+.NET+CLR+2.0.50727) 200 0 0 5487
2010-12-23 02:20:59 W3SVC253 122.200.77.20 GET /CuteSoft_Client/CuteEditor/Dialogs/Load.ashx type=image&file=formbn.gif 80 - 61.135.195.32 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+.NET+CLR+2.0.50727) 304 0 0 190
2010-12-23 02:20:59 W3SVC253 122.200.77.20 GET /CuteSoft_Client/CuteEditor/Dialogs/Load.ashx type=image&file=colorpicker.gif 80 - 61.135.195.32 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+.NET+CLR+2.0.50727) 304 0 0 190
2010-12-23 02:20:59 W3SVC253 122.200.77.20 GET /CuteSoft_Client/CuteEditor/Dialogs/Load.ashx type=dialogscript&file=Dialog_Tag_A.js 80 - 61.135.195.32 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+.NET+CLR+2.0.50727) 304 0 0 190
2010-12-23 02:20:59 W3SVC253 122.200.77.20 GET /CuteSoft_Client/CuteEditor/Dialogs/Load.ashx type=dialogscript&file=DialogFoot.js 80 - 61.135.195.32 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+.NET+CLR+2.0.50727) 304 0 0 190
2010-12-23 02:20:59 W3SVC253 122.200.77.20 GET /CuteSoft_Client/CuteEditor/Dialogs/Load.ashx type=dialogscript&file=Dialog_TagFoot.js 80 - 61.135.195.32 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+.NET+CLR+2.0.50727) 304 0 0 190

我也不太清楚