Bad Request นี่พอจะเดาได้มั้ยครับว่าเกิดจากอะไรบ้าง

subcategory=renhtml(request.QueryString("subcat"))
'renhtml ผมใช้ตัดค่ากรณีบางคนใส่แท๊กคำสั่งมาน่ะครับ

	Dim Conn,strSQL,objRec,intRows
	Set Conn = Server.Createobject("ADODB.Connection")
	Conn.Open "DRIVER=Microsoft Access Driver (*.mdb);DBQ=" & Server.MapPath("access_db/Dac0120FWfvIng102D.mdb")
if nts = "" then 
	strSQL = "SELECT * FROM Products where category=15 and (subcategory like '%"& subcategory & "%' ) order by ProductName asc "
else
	strSQL = "SELECT * FROM Products where category=15 and (subcategory like '%"& subcategory & "%' ) order by ProductID desc "
end if
	Set objRec = Server.CreateObject("ADODB.Recordset")
	objRec.Open strSQL, Conn, 1,3

	Dim Conn,strSQL,objRec,intRows
	Set Conn = Server.Createobject("ADODB.Connection")
	Conn.Open "DRIVER=Microsoft Access Driver (*.mdb);DBQ=" & Server.MapPath("access_db/Dac0120FWfvIng102D.mdb")
	strSQL = "SELECT * FROM Products where category=15 and (subcategory like '%"& subcategory & "%' ) order by ProductName asc "
	Set objRec = Server.CreateObject("ADODB.Recordset")
	objRec.Open strSQL, Conn, 1,3

if nts = "" then  
  strSQL = "SELECT * FROM Products where category=15"
else 
  strSQL = "SELECT * FROM Products where category=15"
end if