http://cafe.naver.com/q69/8425
web.config
<globalization requestEncoding="euc-kr" responseEncoding="euc-kr" />

testflash.aspx
<form>
  <% Response.Write("&name_h=머머&name_e=end&ok=ok"); %>
</form>

webform.aspx
<embed src=1.swf></embed>

액션스크립트
System.useCodepage = true;
loadVariablesNum("flashtest.aspx",0);
if (ok) {
label1.text=name_h;
label2.text=name_e;
stop();
}