ws_esdlconfig no longer links on windows

168>ws_esdlconfigservice.obj : error LNK2019: unresolved external symbol "public: static bool __cdecl EsdlBindingImpl::ensureSDSPath(char const *)" (?ensureSDSPath@EsdlBindingImpl@@SA_NPBD@Z) referenced in function "public: virtual void __thiscall CWsESDLConfigEx::init(struct IPropertyTree *,char const *,char const *)" (?init@CWsESDLConfigEx@@UAEXPAUIPropertyTree@@PBD1@Z)
168>C:\build14\bin\Debug\ws_esdlconfig.dll : fatal error LNK1120: 1 unresolved externals