System.Security.SecurityException: Request for the permission of type 'System.Net.WebPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)

at System.Security.CodeAccessPermission.Demand()

at System.Net.HttpWebRequest..ctor(Uri uri, ServicePoint servicePoint)

at System.Net.HttpRequestCreator.Create(Uri Uri)

at System.Net.WebRequest.Create(Uri requestUri, Boolean useUriBase)

at System.Net.WebRequest.Create(Uri requestUri)

at System.Web.Services.Protocols.WebClientProtocol.GetWebRequest(Uri uri)

at System.Web.Services.Protocols.HttpWebClientProtocol.GetWebRequest(Uri uri)

at System.Web.Services.Protocols.SoapHttpClientProtocol.GetWebRequest(Uri uri)

at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[]

<call stack removed>

The action that failed was:

Demand

The type of the first permission that failed was:

System.Net.WebPermission

The first permission that failed was:

<IPermission class="System.Net.WebPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"

version="1">

<ConnectAccess>

<URI uri="http://xxxx/yyyy\.asmx"/>

</ConnectAccess>

</IPermission>

The demand was for:

<IPermission class="System.Net.WebPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"

version="1">

<ConnectAccess>

<URI uri=" http://xxxx/yyyy\.asmx "/>

</ConnectAccess>

</IPermission>

The granted set of the failing assembly was:

<PermissionSet class="System.Security.PermissionSet" version="1">

<IPermission class="System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"

version="1"

Unrestricted="true"/>

<IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"

version="1"

Unrestricted="true"/>

<IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"

version="1"

Flags="UnmanagedCode, Execution, ControlThread, ControlEvidence, ControlPolicy, ControlPrincipal"/>

<IPermission class="System.Security.Permissions.StrongNameIdentityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"

version="1"

PublicKeyBlob="xxxxxxxx"

Name="xxxxx"

AssemblyVersion="1.0.0.0"/>

<IPermission class="System.Security.Permissions.UrlIdentityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"

version="1"

Url="file:///C:/Inetpub/wwwroot/wss/VirtualDirectories/80/bin/ xxxxx.DLL"/>

<IPermission class="System.Security.Permissions.ZoneIdentityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"

version="1"

Zone="MyComputer"/>

<IPermission class="System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"

version="1"

Level="Medium"/>

<IPermission class="Microsoft.SharePoint.Security.SharePointPermission, Microsoft.SharePoint.Security, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c"

version="1"

ObjectModel="True"/>

<IPermission class="System.DirectoryServices.DirectoryServicesPermission, System.DirectoryServices, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"

version="1"

Unrestricted="true"/>

</PermissionSet>