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asp程序出错后，错误提示不是很清楚明白，让人摸不着头脑，用下面方法看看有没有帮助（此法目前只适合处ado错误外的错误）
步骤一，用编辑器打开c:\winnt\help\iishelp\common\500-100.asp
将它另存为500-101.asp备份(以便日后恢复）
步骤二，将下面的代码覆盖500-100.asp原文件，保存退出
步骤三，创建新文件test.asp，添加如下代码
<% response.write now(1)%>，存盘退出
步骤四，在浏览器中输入localhost/test.asp查看结果
500-100.asp的新代码：
<%@ language="vbscript" %>
<%
option explicit
const lngmaxformbytes = 200
dim objasperror, blnerrorwritten, strservername, strserverip, strremoteip
dim strmethod, lngpos, datnow, strquerystring, strurl
if response.buffer then
response.clear
response.status = "500 internal server error"
response.contenttype = "text/html"
response.expires = 0
end if
set objasperror = server.getlasterror
%>
<!doctype html public "-//w3c//dtd html 3.2 final//en">
<html dir=ltr>
<head>
<style>
a:link {font:9pt 宋体; color:ff0000}
a:visited {font:9pt 宋体; color:#4e4e4e}
</style>
<meta name="robots" content="noindex">
<title>本页出错</title>
<meta http-equiv="content-type" content="text-html; charset=gb2312">
<meta name="ms.locale" content="zh-cn">
</head>
<script>
function homepage(){
<!–
// in real bits, urls get returned to our script like this:
// res://shdocvw.dll/http_404.htm#http://www.docurl.com/bar.htm
//for testing use docurl = "res://shdocvw.dll/http_404.htm#https://www.microsoft.com/bar.htm"
docurl=document.url;
//this is where the http or https will be, as found by searching for :// but skipping the res://
protocolindex=docurl.indexof("://",4);
//this finds the ending slash for the domain server
serverindex=docurl.indexof("/",protocolindex + 3);
//for the href, we need a valid url to the domain. we search for the # symbol to find the begining
//of the true url, and add 1 to skip it – this is the beginurl value. we use serverindex as the end marker.
//urlresult=docurl.substring(protocolindex – 4,serverindex);
beginurl=docurl.indexof("#",1) + 1;
urlresult=docurl.substring(beginurl,serverindex);
//for display, we need to skip after http://, and go to the next slash
displayresult=docurl.substring(protocolindex + 3 ,serverindex);
document.write( <a href=" + escape(urlresult) + "> + displayresult + "</a>");
}
//–>
</script>
<body bgcolor="ffffff">
<ul>
<li>错误类型：<br>
<%
dim bakcodepage
bakcodepage = session.codepage
session.codepage = 936
response.write server.htmlencode(objasperror.category)
if objasperror.aspcode > "" then response.write server.htmlencode(", " & objasperror.aspcode)
response.write server.htmlencode(" (0x" & hex(objasperror.number) & ")" ) & "<br>"
if objasperror.aspdescription > "" then response.write server.htmlencode(objasperror.aspdescription) & "<br>"
%>
</li>
<p>
<li>错误位置：<br>
<%
blnerrorwritten = false
only show the source if it is available and the request is from the same machine as iis
if objasperror.source > "" then
strservername = lcase(request.servervariables("server_name"))
strserverip = request.servervariables("local_addr")
strremoteip = request.servervariables("remote_addr")
if (strservername = "localhost" or strserverip = strremoteip) and objasperror.file <> "?" then
response.write server.htmlencode(objasperror.file)
if objasperror.line > 0 then response.write ", 第 " & objasperror.line & " 行"
if objasperror.column > 0 then response.write ", 第 " & objasperror.column & " 列"
response.write "<br>"
response.write "<font style=""color:000000; font: 9pt 宋体""><b>"
response.write server.htmlencode(objasperror.source) & "<br>"
if objasperror.column > 0 then response.write string((objasperror.column – 1), "-") & "^<br>"
response.write "</b></font>"
blnerrorwritten = true
end if
end if
if not blnerrorwritten and objasperror.file <> "?" then
response.write "<b>"
response.write server.htmlencode(objasperror.file)
if objasperror.line > 0 then response.write server.htmlencode(", 第 " & objasperror.line & " 行")
if objasperror.column > 0 then response.write ", 第 " & objasperror.column & " 列"
response.write "</b><br>"
end if
%>
</li>
<p>
<li>错误描述：<br>
<%
response.write server.htmlencode(objasperror.description)
%>
</li>
<p>
</body>
</html>
