net481 
namespace System.Web.Http.Owin
{
    public class HttpMessageHandlerAdapter : OwinMiddleware, IDisposable
    {
        [Obsolete("Use the HttpMessageHandlerAdapter(OwinMiddleware, HttpMessageHandlerOptions) constructor instead.")]
        public HttpMessageHandlerAdapter(OwinMiddleware next, HttpMessageHandler messageHandler, IHostBufferPolicySelector bufferPolicySelector);
    }
}
.NET Framework
4.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
Information specific to net481
Assembly

System.Web.Http.Owin , Version=5.3.0.0, PublicKeyToken=31bf3856ad364e35

Referencing

Your project needs a package reference to Microsoft.AspNet.WebApi.Owin.

Package Microsoft.AspNet.WebApi.Owin (5.3.0) net45
Obsolete Use the HttpMessageHandlerAdapter(OwinMiddleware, HttpMessageHandlerOptions) constructor instead.
Platform Restrictions

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  • Package-provided API