'Usage

Dim instance As UserGroup
Dim userLoginName As String
Dim returnValue As XmlNode

returnValue = instance.GetUserInfo(userLoginName)

'Declaration

<SoapDocumentMethodAttribute("http://schemas.microsoft.com/sharepoint/soap/directory/GetUserInfo", RequestNamespace:="http://schemas.microsoft.com/sharepoint/soap/directory/", ResponseNamespace:="http://schemas.microsoft.com/sharepoint/soap/directory/", Use:=SoapBindingUse.Literal, ParameterStyle:=SoapParameterStyle.Wrapped)> _
Public Function GetUserInfo ( _
    userLoginName As String _
) As XmlNode

Dim usrgrpService As New Web_Reference_Folder_Name.UserGroup()
usrgrpService.Credentials = System.Net.CredentialCache.DefaultCredentials

Dim ndUser As XmlNode = usrgrpService.GetUserInfo("DOMAIN\User_Alias")

MessageBox.Show(ndUser.OuterXml)