Please Help (Tomorrow on pubblishing)

[Andrea Gasperi]

I've developed on a stage server a great application!
Now I try to publish on the main server.
I've setted up a web app under the default web server and copyed the files
under it.

now my default.asp answare with the following error:
"
Server object error 'ASP 0177 : 800401f3'

Server.CreateObject Failed

/ducaticorse/staff/global.asa, line 32

Invalid class string
"

line 32 in global.asa is the following:
Set DE = Server.CreateObject("DERuntime.DERuntime")

Now my questions:
1) wich components should I install on the publishing server?
2) where do I get it?
3) do I need to restart the server after setup?
4) is the software I install costware?

Please note:

If Someone.GivesHelp = true then
Me.Say "Thank you!" & vbCrLf & "I'm safe"
else
MyBoss.Reaction = "Very Nervous"
End If