internal CustomLoaderHelperFunctions(IProcessHostSupportFunctions supportFunctions, string appId) {
                _supportFunctions = supportFunctions;

                string appVirtualPath, appPhysicalPath, siteName, siteId;
                _supportFunctions.GetApplicationProperties(appId, out appVirtualPath, out appPhysicalPath, out siteName, out siteId);

                AppId = appId;
                AppVirtualPath = appVirtualPath;
                AppPhysicalPath = appPhysicalPath;
            }