runtime error : FileNotFoundException on webservice call

[nono752]

Hello,

I have got a security problem with my web service.
When i deploy my WS on my production server, a
FileNotFoundException is thrown.
(see the error below)
So, i use windows authentication without impersonation.

I check that ASPNET has full right on "WINNT/TEMP"
and "ASP.NET Temporary Files"...
and other directories according to :
http://support.microsoft.com:80/support/kb/articles/q317/0/
12.asp&NoWebContent=1&NoWebContent=1

I try to add full rigth on "\WINNT" to ASPNET but it does
not work...
Then, I try to add full right on "c:" and it works now !
It works too when ASPNET is member of administrator group.

So, i think i forgot to add rights on a directory but
which one ?

(i try with the "hello world" web service but it is the
same problem)

Thanks..
nono

My error :

System.IO.FileNotFoundException: File or assembly
name -wyjxhpy.dll, or one of its dependencies, was not
found.
File name : "-wyjxhpy.dll"
at System.Reflection.Assembly.nLoad(AssemblyName fileName,
String codeBase, Boolean isStringized, Evidence
assemblySecurity, Boolean throwOnFileNotFound, Assembly
locationHint, StackCrawlMark& stackMark)
at System.Reflection.Assembly.InternalLoad(AssemblyName
assemblyRef, Boolean stringized, Evidence
assemblySecurity, StackCrawlMark& stackMark)
at System.Reflection.Assembly.Load(AssemblyName
assemblyRef)
at
System.CodeDom.Compiler.CompilerResults.get_CompiledAssembl
y()
at System.Xml.Serialization.Compiler.Compile()
at System.Xml.Serialization.TempAssembly..ctor(XmlMapping
[] xmlMappings)
at System.Xml.Serialization.XmlSerializer.FromMappings
(XmlMapping[] mappings)
at System.Web.Services.Protocols.XmlReturn.GetInitializers
(LogicalMethodInfo[] methodInfos)
at
System.Web.Services.Protocols.XmlReturnWriter.GetInitialize
rs(LogicalMethodInfo[] methodInfos)
at
System.Web.Services.Protocols.MimeFormatter.GetInitializers
(Type type, LogicalMethodInfo[] methodInfos)
at System.Web.Services.Protocols.HttpServerType..ctor(Type
type)
at
System.Web.Services.Protocols.HttpServerProtocol.Initialize
()
at
System.Web.Services.Protocols.ServerProtocolFactory.Create
(Type type, HttpContext context, HttpRequest request,
HttpResponse response, Boolean& abortProcessing)

Fusion log follows:
=== Pre-bind state information ===
LOG: Where-ref bind. Location = C:\WINNT\TEMP\-wyjxhpy.dll
LOG: Appbase = file:///E:/WEB/wwwroot/WS_extranet
LOG: Initial PrivatePath = bin
Calling assembly : (Unknown).
===

LOG: Policy not being applied to reference at this time
(private, custom, partial, or location-based assembly
bind).
LOG: Attempting download of new URL file:///C:/WINNT/TEMP/-
wyjxhpy.dll.