WlanHostedNetworkStartUsing function

The WlanHostedNetworkStartUsing function starts the wireless Hosted Network.


DWORD WINAPI WlanHostedNetworkStartUsing(
  _In_       HANDLE                      hClientHandle,
  _Reserved_ PVOID                       pvReserved


hClientHandle [in]

The client's session handle, returned by a previous call to the WlanOpenHandle function.

pFailReason [out, optional]

An optional pointer to a value that receives the failure reason, if the call to the WlanHostedNetworkStartUsing function fails. Possible values for the failure reason are from the WLAN_HOSTED_NETWORK_REASON enumeration type defined in the Wlanapi.h header file.


Reserved for future use. This parameter must be NULL.

Return value

If the function succeeds, the return value is ERROR_SUCCESS.

If the function fails, the return value may be one of the following return codes.

Return codeDescription

A parameter is incorrect. This error is returned if any of the following conditions occur:

  • hClientHandle is NULL.
  • pvReserved is not NULL.

A handle is invalid. This error is returned if the handle specified in the hClientHandle parameter was not found in the handle table.


The resource is not in the correct state to perform the requested operation. This error is returned if the wireless Hosted Network is disabled by group policy on a domain.


The service has not been started. This error is returned if the WLAN AutoConfig Service is not running.


Various RPC and other error codes. Use FormatMessage to obtain the message string for the returned error.



The WlanHostedNetworkStartUsing function is an extension to native wireless APIs added to support the wireless Hosted Network on Windows 7 and on Windows Server 2008 R2 with the Wireless LAN Service installed.

A client application calls the WlanHostedNetworkStartUsing function to start the wireless Hosted Network. Successful calls must be matched by calls to WlanHostedNetworkStopUsing function. This call could fail if Hosted Network state is wlan_hosted_network_unavailable.

Any Hosted Network state change caused by this function would be automatically undone if the calling application closes its calling handle (by calling WlanCloseHandle with the hClientHandle parameter) or if the process ends.

Any user can call the WlanHostedNetworkStartUsing function to start the Hosted Network. However, the ability to enable the wireless Hosted Network may be restricted by group policy in a domain.

On Windows 7 and later, the operating system installs a virtual device if a Hosted Network capable wireless adapter is present on the machine. This virtual device normally shows up in the “Network Connections Folder” as ‘Wireless Network Connection 2’ with a Device Name of ‘Microsoft Virtual WiFi Miniport adapter’ if the computer has a single wireless network adapter. This virtual device is used exclusively for performing software access point (SoftAP) connections and is not present in the list returned by the WlanEnumInterfaces function. The lifetime of this virtual device is tied to the physical wireless adapter. If the physical wireless adapter is disabled, this virtual device will be removed as well. This feature is also available on Windows Server 2008 R2 with the Wireless LAN Service installed.


Minimum supported client

Windows 7 [desktop apps only]

Minimum supported server

Windows Server 2008 R2 [desktop apps only]


Wlanapi.h (include Wlanapi.h)





See also

About the Wireless Hosted Network
Using Wireless Hosted Network and Internet Connection Sharing