My Vista Business SP1 laptop wireless networking stopped working on my
Lenovo ThinkPad T400. The problem boils down to an

error starting the "Extensible Authentication Protocol" service. When
I try to start the service, I get a generic error:

Services

Windows could not start the Extensible Authentication Protocol service
on Local Computer.

Error 2: The system cannot find the file specified.

I tried the two solutions I found on the net but neither resolved the
problem (wireless doesn't work, EAP service won't

start).

Start Service Wired AutoConfig Properties
http://www.inf.aber.ac.uk/advisory/faq/965/#vista

Start hidden service ndisuio
http://social.technet.microsoft.com/...-f7668cd67158/


According to the registry key
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\EapHost the dll
for this service is

"C:\Windows\System32\eapsvc.dll". The file exists. When I open it in
Dependency Walker it shows a warning for two files:

Warning: At least one module has an unresolved import due to a missing
export function in a delay-load dependent module.

Specifically:

c:\windows\system32\IEFRAME.DLL (7.00.6000.16386)

Has errors--functions labeled #160, #159, and #141, #165, #167, and
#142 show up as "Not Bound".

Additionally:

c:\windows\system32\SHLWAPI.DLL (6.0.6001.1800)

Has one error, function #467 shows up as "Not Bound".

Are there newer versions of these files? What updates do I need to
install to get them? I have no idea why this service

suddently stopped working--no updates that I recall and no software
installations.

Any other suggestions as to what is wrong or what I should look into?

Thanks,

Sam