<%
dim objconn,strconn,sqlcmd,frmgonghao
frmgonghao=request.form("gonghao")

set objconn=server.createobject("adodb.connection")
strconn="provider= microsoft.jet.oledb.4.0; data source="&server.mappath("train.mdb")                                                                                   
objconn.open strconn
sqlcmd="select * from basic_infor where 工号='"&frmgonghao&"'"
set rs=objconn.execute(sqlcmd)
%>

两周前运行正常，现在运行后报“HTTP 500 Internal Server Error”错误，是IIS需要什么样的设置吗？

返回的是下面的东东

This error (HTTP 500 Internal Server Error) means that the website you are visiting had a server problem which prevented the webpage from displaying.

显示的是如下：
Microsoft JET Database Engine error '80004005'

Too many fields defined.

/ptfesdw25.asp, line 11

line 11 是 “ set rs=objconn.execute(sqlcmd) ”