connect to a password protected shared folder over network using Delphi

I have a multi user Delphi program which needs a shared folder over network to store data. I want the program changes the files in that folder but not normal users (who can see this folder) or network viruses...

I want to protect this folder with a password (windows 7) but I need to write new files or edit existing files via my program and I don't know how to do this.

Briefly I need to connect and disconnect to a shared folder via code like this

ConnectToFolder(\\myServerMachine\mySharedfolder username:me password:myPassword);
disConnectToFolder(\\myServerMachine\mySharedfolder username:me password:myPassword);

Is this possible?

Something like this would probably do the trick

function ConnectShare(Drive, RemotePath, UserName, Password : String):Integer;
var
  NRW : TNetResource;
begin
  with NRW do
  begin
    dwType := RESOURCETYPE_ANY;
    if Drive <> '' then
      lpLocalName := PChar(Drive)
    else
      lpLocalName := nil;
    lpRemoteName := PChar(RemotePath);
    lpProvider := '';
  end;
  Result := WNetAddConnection2(NRW, PChar(Password), PChar(UserName), 0);
end;

function DisconnectShare(Drive : String):Integer;
begin
  Result := WNetCancelConnection2(PChar(Drive), 0, false);
end;