Does Weblogic 10 supports HTTP/1.0..?

Hi,

My application contains an executable client. This client when invoked calls a
servlet in the server. This application is working fine in weblogic 6.1 sp3 now.
Iam trying to migrate this application to weblogic 10. However, when I invoke
the executable client, its not reaching the servlet. Then I found the following
logged in the access logs.
"[b]152.67.221.214 - - [06/Sep/2007:22:47:09 -0700] "POST
/invoke/wm.server/connect HTTP/1.0" 401 1518[/b]"
[b]Note: I dont have the source code of the executable client.[/b]. 
My doubts:
Does weblogic supports HTTP/1.0...?
how to make this work without having the control over the client..?
Can we do something in server to make this work..?
Its evident from the access log, that the request is unauthorized...how to avoid
with without touching the client..?

FYI, Its working fine in weblogic 6.1 sp3. Below is the log recorded in weblogic
6.1 sp3 access log.
[b]152.67.221.214 - - [06/Sep/2007:01:29:50 -0800] "POST
http://appstg01:7031/invoke/wm.server/connect HTTP/1.0" 200 22[/b] 

How to make this work in weblogic 10. [b]I can modify only the servlet and not
the executable client.[/b]

Thanks in advance.