In my experience this is almost always an ACL issue, that the ASPNET user cannot read or write to the correct directories.
Usually the directory in question is c:\winnt\temp. But in your case it appears to be in documents and settings\aspnet. I'd do two things: 1) Give the ASPNET user access to that dir (or perhaps the IUSR_<machinename> - since likely that is who the thread is running as assuming you has anonymous access on and your web.config is set up the way you described). Actually turning off impersonation might help actually. 2) download filemon from www.sysinternals.com. Run filemon while this is happening. It will tell you exactly what file(s) are trying to be read and you can then try to adjust permissions from there. -----Original Message----- From: Moderated discussion of advanced .NET topics. [mailto:[EMAIL PROTECTED] On Behalf Of Taylor, Rick (US - Hermitage) Sent: Monday, January 19, 2004 9:25 AM To: [EMAIL PROTECTED] Subject: [ADVANCED-DOTNET] XmlSerializer problem through WebService Hi all, I'm having an interesting problem concerning the XmlSerializer and web services. I have a serializable class that I intend to return through a web service to my client. What is happening is that XmlSerializer is reflecting the class in question, creating a DLL, and then attempting to load its newly created DLL (as it normally does). It unfortunately is unable to do this. The exception being thrown follows this message. It actually looks like it never creates the DLL in the first place. The assembly binding log viewer doesn't show any attempts. Right now, I have the web site (a virtual dir, actually, on the default site) set basically wide open. Like, bad wide open -- it shouldn't be having permission problems, IMO. I'm allowing access to scripts and executables, and allowing r/w/browse on the virtual dir, and ASPNET is admin on this machine. The security mode is windows. I've also added the following to my web.config : <compilation defaultLanguage="C#" debug="true"> <assemblies> <add assembly="*" /> </assemblies> </compilation> <identity impersonate="true" /> So far, no luck. Oh, I have also turned off indexing services for the drive (read that on a google hit, don't know what difference that would make). The XmlSerializer does not have these problems in a Winforms app. The machine is win2kPro. So, I'm stumped. Anyone want to take a whack at this? Thanks, Rick System.IO.FileNotFoundException: File or assembly name z233ihj5.dll, or one of its dependencies, was not found. File name: "z233ihj5.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, Evidence assemblySecurity) at System.CodeDom.Compiler.CompilerResults.get_CompiledAssembly() at System.CodeDom.Compiler.CompilerResults.get_CompiledAssembly() 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(LogicalMethodInf o[] methodInfos) at System.Web.Services.Protocols.XmlReturnWriter.GetInitializers(LogicalMet hodInfo[] 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) === Pre-bind state information === LOG: Where-ref bind. Location = C:\DOCUME~1\USPSCR~1\ASPNET\LOCALS~1\Temp\z233ihj5.dll LOG: Appbase = file:///C:/Inetpub/wwwroot/ESS 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:/DOCUME~1/USPSCR~1/ASPNET/LOCALS~1/Temp/z233ihj5.dll. This message (including any attachments) contains confidential information intended for a specific individual and purpose, and is protected by law. If you are not the intended recipient, you should delete this message. Any disclosure, copying, or distribution of this message, or the taking of any action based on it, is strictly prohibited. =================================== This list is hosted by DevelopMentor. http://www.develop.com Some .NET courses you may be interested in: NEW! Guerrilla ASP.NET, 26 Jan 2004, in Los Angeles http://www.develop.com/courses/gaspdotnetls View archives and manage your subscription(s) at http://discuss.develop.com =================================== This list is hosted by DevelopMentorŪ http://www.develop.com Some .NET courses you may be interested in: NEW! Guerrilla ASP.NET, 26 Jan 2004, in Los Angeles http://www.develop.com/courses/gaspdotnetls View archives and manage your subscription(s) at http://discuss.develop.com