Hi folks, My web service is configured to use NTLM authentication in IIS (w/o anonymous access) and is also uses the authentication="windows" and impersonate="true" settings in web.config. However for some strange reason, I seem to get the "unable to temporary class" error while trying to access my web service (see [1] for details).
This error goes away if: a) impersonate is set to "false" OR b) ASP.NET is configured to run under the SYSTEM account Is this a bug in ASP.NET? Note that this seems to happen only on some machines (right now I have seen it only on *some* XP machines). I even tried giving the remote user administrative rights to the machine but with no luck. There are no directory permission restrictions on the entire drive and therefore everyone should be able to access any directory on the machine. [1]: System.Web.Services.Protocols.SoapException: Unable to generate a temporary class (result=1). error CS0009: Metadata file 'C:\WINNT\Microsoft.NET\Framework\v1.0.3705 \Temporary ASP.NET Files\eam_webservices_Foowebserviceprojects_webservice\aaf0c337\eff30307 \assembly\dl\ff172149\b1dcec4e_743dc201\Foo.DLL' could not be opened -- 'Access is denied. ' ---> System.InvalidOperationException: Unable to generate a temporary class (result=1). error CS0009: Metadata file 'C:\WINNT\Microsoft.NET\Framework\v1.0.3705 \Temporary ASP.NET Files\eam_webservices_Foowebserviceprojects_webservice\aaf0c337\eff30307 \assembly\dl\ff172149\b1dcec4e_743dc201\Foo.DLL' could not be opened -- 'Access is denied. ' at System.Xml.Serialization.Compiler.Compile() at System.Xml.Serialization.TempAssembly..ctor(XmlMapping[] xmlMappings) at System.Xml.Serialization.XmlSerializer..ctor(Type type) at WebService.XmlSerializerHelper.GetCollectionAsXmlDocument(Object collection) in c:\inetpub\wwwroot\Foo\webservices\Foowebserviceprojects_webservice\xmlseri alizerhelper.cs:line 61 at WebService.Workflow.GetApprovalDesc(Int32 workflowID) in c:\inetpub\wwwroot\Foo\WebServices\FooWebServiceProjects_WebService\Workflo w.asmx.cs:line 140 --- End of inner exception stack trace --- at WebService.Workflow.GetApprovalDesc(Int32 workflowID) in c:\inetpub\wwwroot\Foo\WebServices\FooWebServiceProjects_WebService\Workflo w.asmx.cs:line 148 Atul You can read messages from the Advanced DOTNET archive, unsubscribe from Advanced DOTNET, or subscribe to other DevelopMentor lists at http://discuss.develop.com.
