what is vnlt5phx.dll? Web service error...

[John]

Hello,
I have recently installed a web services app on a Server 2003 machine.
It was developed on Win XP pro. The application calls a web service
running on the local machine (localhost). When it reaches this web
service call, I get the following error. I don't have this
vnlt5phx.dll on my development machine, or on any machine that I have.
Thanks in advance for your help...


System.Web.Services.Protocols.SoapException: Server was unable to
process request. ---> System.IO.FileNotFoundException: File or
assembly name vnlt5phx.dll, or one of its dependencies, was not found.
File name: "vnlt5phx.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.SoapServerType..ctor(Type type,
ProtocolsEnum versionsSupported)
at System.Web.Services.Protocols.SoapServerProtocol.Initialize()
at System.Web.Services.Protocols.ServerProtocolFactory.Create(Type
type, HttpContext context, HttpRequest request, HttpResponse response,
Boolean& abortProcessing)