WsOpenServiceHost returns WS_E_OTHER - web-services

Question

I'm tryind to run HttpCalculatorServiceExample located in MSDN. Function WsOpenServiceHost returns error code 0x803d0021. This error means
MessageId: WS_E_OTHER
Unrecognized error occurred in the Windows Web Services framework.
Printed error:
Unable to add URL to HTTP URL group.
Unrecognized error occurred in the Windows Web Services framework.
The process cannot access the file because it is being used by another process.
How to solve this problem?
int __cdecl wmain(int argc, __in_ecount(argc) wchar_t **argv)
{
UNREFERENCED_PARAMETER(argc);
UNREFERENCED_PARAMETER(argv);
HRESULT hr = NOERROR;
WS_SERVICE_HOST* host = NULL;
WS_SERVICE_ENDPOINT serviceEndpoint = {};
const WS_SERVICE_ENDPOINT* serviceEndpoints[1];
serviceEndpoints[0] = &serviceEndpoint;
WS_ERROR* error = NULL;
WS_SERVICE_ENDPOINT_PROPERTY serviceEndpointProperties[1];
WS_SERVICE_PROPERTY_CLOSE_CALLBACK closeCallbackProperty = {CloseChannelCallback};
serviceEndpointProperties[0].id = WS_SERVICE_ENDPOINT_PROPERTY_CLOSE_CHANNEL_CALLBACK;
serviceEndpointProperties[0].value = &closeCallbackProperty;
serviceEndpointProperties[0].valueSize = sizeof(closeCallbackProperty);
// Initialize service endpoint
serviceEndpoint.address.url.chars = L"http://+:80/example"; // address given as uri
serviceEndpoint.address.url.length = (ULONG)wcslen(serviceEndpoint.address.url.chars);
serviceEndpoint.channelBinding = WS_HTTP_CHANNEL_BINDING; // channel binding for the endpoint
serviceEndpoint.channelType = WS_CHANNEL_TYPE_REPLY; // the channel type
serviceEndpoint.contract = &calculatorContract; // the contract
serviceEndpoint.properties = serviceEndpointProperties;
serviceEndpoint.propertyCount = WsCountOf(serviceEndpointProperties);
// Create an error object for storing rich error information
hr = WsCreateError(
NULL,
0,
&error);
if (FAILED(hr))
{
goto Exit;
}
// Create Event object for closing the server
closeServer = CreateEvent(
NULL,
TRUE,
FALSE,
NULL);
if (closeServer == NULL)
{
hr = HRESULT_FROM_WIN32(GetLastError());
goto Exit;
}
// Creating a service host
hr = WsCreateServiceHost(
serviceEndpoints,
1,
NULL,
0,
&host,
error);
if (FAILED(hr))
{
goto Exit;
}
// WsOpenServiceHost to start the listeners in the service host
hr = WsOpenServiceHost(
host,
NULL,
error);
if (FAILED(hr))
{
goto Exit;
}
WaitForSingleObject(closeServer, INFINITE);
// Close the service host
hr = WsCloseServiceHost(host, NULL, error);
if (FAILED(hr))
{
goto Exit;
}
Exit:
if (FAILED(hr))
{
// Print out the error
PrintError(hr, error);
}
fflush(
stdout);
if (host != NULL)
{
WsFreeServiceHost(host);
}
if (error != NULL)
{
WsFreeError(error);
}
if (closeServer != NULL)
{
CloseHandle(closeServer);
}
fflush(stdout);
return SUCCEEDED(hr) ? 0 : -1;
}

Answer 1

I had the same error "Unrecognized error occurred in the Windows Web Services framework", while tried to debug remote target (C++ project).
I've tried all possible solutions, which I've found over internet: turn-off/uninstall antivirus(I use MS Essentials), turnoff firewall, reinstall VS etc.
But it didn't help.
So, I've deleted all programms (not windows updates) which I've installed last month, reboot computer, and the bug went away.
Uninstalled software:
Foxit PhantomPDF Standard. Версия: 7.0.5.1021.
widecap
CCleaner
Uninstall Tool
just in case, I've also uninstalled Microsoft Security Essentials and after the bug went away I've installed it again and had no problems.
Hope, this helps