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Network Share Functions

The network share functions control shared resources. A shared resource is a local resource on a server (for example, a disk directory, print device, or named pipe) that can be accessed by users and applications on the network.

The share functions are listed following.

FunctionDescription
NetShareAdd Shares a resource on a server.
NetShareCheck Queries whether a server is sharing a device.
NetShareDel Deletes a share name from a server's list of shared resources.
NetShareEnum Retrieves share information about each shared resource on a server.
NetShareGetInfo Retrieves information about a specified shared resource on a server.
NetShareSetInfo Sets a shared resource's parameters.

 

The NetShareAdd function allows a user or application to share a resource of a specific type using the specified share name. The NetShareAdd function requires the share name and local device name to share the resource. A user or application must have an account on the server to access the resource.

You can also specify a security descriptor to be associated with a share. Security descriptors specify which users are allowed to access files through the share, and with what type of access. Specify a SECURITY_DESCRIPTOR with the SHARE_INFO_502 information level when calling NetShareAdd or NetShareSetInfo. NetShareSetInfo supports the SHARE_INFO_1501 information level. For more information about security descriptors, see Access Control.

The network management functions use the following special share names for interprocess communication (IPC) and remote administration of the server:

  • IPC$, reserved for interprocess communication
  • ADMIN$, reserved for remote administration
  • A$, B$, C$ (and other local disk names followed by a dollar sign), assigned to local disk devices

To list all connections made to a shared resource on a server, or to list all connections established from a particular computer, call the NetConnectionEnum function. You can call NetConnectionEnum at the CONNECTION_INFO_0 and CONNECTION_INFO_1 information levels.

Share functions are available at the following information levels:

SHARE_INFO_0
SHARE_INFO_1
SHARE_INFO_2
SHARE_INFO_501
SHARE_INFO_502
SHARE_INFO_1005

The following information levels are valid only for NetShareSetInfo:

SHARE_INFO_1004
SHARE_INFO_1006
SHARE_INFO_1501

If you are programming for Active Directory, you may be able to call certain Active Directory Service Interface (ADSI) methods to achieve the same functionality you can achieve by calling the network management share functions. For more information, see IADsFileShare.

 

 

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