Develop Reference

I want create a Connect forwarding to SSH server with library on website www.bitvise.com

I created a connect to SSH server forwarding with library "FlowSshNet64_Framework40.dll" (my operating system is 64 bit) in C# but while I'm running error after import library to application and follow the instructions:
https://www.bitvise.com/fsd-client
Bitvise.FlowSshNet.Client t = new Client();
t.SetProxyHost("66.172.203.200");
t.SetProxyOptions(true);
t.SetProxyUserName("admin");
t.SetProxyPassword("admin");
t.SetProxyPort(22);
t.SetProxyType(ProxyType.Socks5);
ForwardingRule setup = new ForwardingRule();
setup.ClientToServer = true;
setup.ListInterface = "127.0.0.1";
setup.ListPort = 1080;
ForwardingHandler setup1 = new ForwardingHandler();
if (setup1.IsDisposed)
{
t.AddForwarding(setup, setup1);
label1.Text = "connected";
}
Picture of the error:

you can use FlowSshNet32_Framework40.dll on the os 64 bit
to run this you must copy all file to same directory such as bin\Debug. I do it and it doesn't have error
Binaries\CiProv32.dll
Binaries\CryptoPP530Fips32.dll
Binaries\FlowSshC32.dll
Binaries\FlowSshNet32_Framework40.dll -> RENAME THIS FILE TO: FlowSshNet32.dll
But i use your code and it not forwarding to ssh

Connecting C# to a Named Pipe from Hyper-V Permissions

I'm trying to write a very simple client in c# for a named pipe created by hyper-v on windows 8 pro.
The hyper-v named pipe is connected to the com port of a virtual machine.
The code i have written is:
static void PipeClient()
{
NamedPipeClientStream npc = new NamedPipeClientStream(".", "DebianCom1", PipeDirection.InOut);
npc.Connect();
var s = new StreamReader(npc);
var cont = true;
while (cont)
{
Console.Write(s.Read());
}
s.Close();
npc.Close();
}
It throws a System.UnauthorizedAccessException on the instantiation of the named pipe client.
Any pointers?

Try running your C# code as an elevated admin.

Get my application to be allowed access through firewall using c#

i am trying to get my application to be allowed through firewall, as I have to do ftp in active and passive mode is not an option as servers are not configured for that. so i tried the below code which compiles fine, I exexcute it using:
MyApp.Classes.INetFwMgr mgr = new MyApp.Classes.INetFwMgr();
mgr.AuthorizeApplication(Application.ProductName, Application.StartupPath,
NET_FW_SCOPE_.NET_FW_SCOPE_ALL,
NET_FW_IP_VERSION_.NET_FW_IP_VERSION_ANY);
And the class which does the job:
private const string CLSID_FIREWALL_MANAGER =
"{304CE942-6E39-40D8-943A-B913C40C9CD4}";
private static NetFwTypeLib.INetFwMgr GetFirewallManager()
{
Type objectType = Type.GetTypeFromCLSID(
new Guid(CLSID_FIREWALL_MANAGER));
return Activator.CreateInstance(objectType)
as NetFwTypeLib.INetFwMgr;
}
private const string PROGID_AUTHORIZED_APPLICATION =
"HNetCfg.FwAuthorizedApplication";
public bool AuthorizeApplication(string title, string applicationPath,
NET_FW_SCOPE_ scope, NET_FW_IP_VERSION_ ipVersion)
{
// Create the type from prog id
Type type = Type.GetTypeFromProgID(PROGID_AUTHORIZED_APPLICATION);
INetFwAuthorizedApplication auth = Activator.CreateInstance(type)
as INetFwAuthorizedApplication;
auth.Name = title;
auth.ProcessImageFileName = applicationPath; //Getting Access Denied Exception Here
auth.Scope = scope;
auth.IpVersion = ipVersion;
auth.Enabled = true;
NetFwTypeLib.INetFwMgr manager = GetFirewallManager();
try
{
manager.LocalPolicy.CurrentProfile.AuthorizedApplications.Add(auth);
}
catch (Exception ex)
{
return false;
}
return true;
}
using above code, but i get Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)) c# exception on line
auth.ProcessImageFileName = applicationPath;
any ideas what to do ?
Edit1: How would i run this as an admin using code?
Edit2: I also tried Putting <requestedExecutionLevel level="requireAdministrator" uiAccess="false" /> in manifest did not make a difference
P.S.This programs execution context can be Win 7, vista, xp

Firewall management is a system level security feature and has to be done outside of user mode application code. Configuration must be done by an administrator.
It is bad practice to write the code that you wrote and assume that your application will be run as administrator. Even if it is run by an administrator, you now have an application that "does FTP stuff" and "does firewall stuff". No application has ever been written like this.
You can write code that interacts with the system firewall, and that code must be run with elevated permissions. Typically such "helper applications" are never even created however as Windows (and every other OS) has all the necessary management tools shipped with the OS (i.e. wf.msc).

i have observed that if i change the order of ftp download statements to following windows dialog appears asking that do you want to allow this program access through firewall; if i click allow access the code works perfectly.
requestDownload = (FtpWebRequest)WebRequest.Create(uri);
requestDownload.UsePassive = false;
requestDownload.KeepAlive = false;
requestDownload.UseBinary = true;
requestDownload.Method = WebRequestMethods.Ftp.DownloadFile;
requestDownload.Credentials = new NetworkCredential(ftpInfoDownload[3], ftpInfoDownload[4]);
responseDownload = (FtpWebResponse)requestDownload.GetResponse();
Stream ftpStream = responseDownload.GetResponseStream();

Try opening the FTP ports in the firewall -- ports 20 and 21 -- and see if that solves your issue.

For running as a different user:
Run Code as a different user (C#)
As for getting through the firewall, have you talked to the person/group responsible for the firewall security? They may have some rules in place that you could use.

"Cannot open Service Control Manager on computer machine name. This operation might require other privileges"

I am trying to find running services in my network systems. I am able to get some but for some systems I am getting the error:
"Cannot open Service Control Manager on computer machine name. This operation might require other privileges"
ServiceController sc = new ServiceController("OPCGlobasysService",servername);
ServiceControllerStatus st = sc.Status;
if (st.ToString().ToLower() == "stopped")
{
labelControl4.Text = "Installed but stopped";
}
if (st.ToString().ToLower() == "running")
{
labelControl4.Text = "Installed and started";
}
Thanks in advance

You should impersonate a user that has the relevant access before making the call.

Use C# to interact with Windows Update

Is there any API for writing a C# program that could interface with Windows update, and use it to selectively install certain updates?
I'm thinking somewhere along the lines of storing a list in a central repository of approved updates. Then the client side applications (which would have to be installed once) would interface with Windows Update to determine what updates are available, then install the ones that are on the approved list. That way the updates are still applied automatically from a client-side perspective, but I can select which updates are being applied.
This is not my role in the company by the way, I was really just wondering if there is an API for windows update and how to use it.

Add a Reference to WUApiLib to your C# project.
using WUApiLib;
protected override void OnLoad(EventArgs e){
base.OnLoad(e);
UpdateSession uSession = new UpdateSession();
IUpdateSearcher uSearcher = uSession.CreateUpdateSearcher();
uSearcher.Online = false;
try {
ISearchResult sResult = uSearcher.Search("IsInstalled=1 And IsHidden=0");
textBox1.Text = "Found " + sResult.Updates.Count + " updates" + Environment.NewLine;
foreach (IUpdate update in sResult.Updates) {
textBox1.AppendText(update.Title + Environment.NewLine);
}
}
catch (Exception ex) {
Console.WriteLine("Something went wrong: " + ex.Message);
}
}
Given you have a form with a TextBox this will give you a list of the currently installed updates. See http://msdn.microsoft.com/en-us/library/aa387102(VS.85).aspx for more documentation.
This will, however, not allow you to find KB hotfixes which are not distributed via Windows Update.

The easiest way to do what you want is using WSUS. It's free and basically lets you setup your own local windows update server where you decide which updates are "approved" for your computers. Neither the WSUS server nor the clients need to be in a domain, though it makes it easier to configure the clients if they are. If you have different sets of machines that need different sets of updates approved, that's also supported.
Not only does this accomplish your stated goal, it saves your overall network bandwidth as well by only downloading the updates once from the WSUS server.

If in your context you're allowed to use Windows Server Update Service (WSUS), it will give you access to the Microsoft.UpdateServices.Administration Namespace.
From there, you should be able to do some nice things :)

P-L right. I tried first the Christoph Grimmer-Die method, and in some case, it was not working. I guess it was due to different version of .net or OS architecture (32 or 64 bits).
Then, to be sure that my program get always the Windows Update waiting list of each of my computer domain, I did the following :
Install a serveur with WSUS (may save some internet bandwith) : http://www.microsoft.com/en-us/download/details.aspx?displaylang=en&id=5216
Add all your workstations & servers to your WSUS server
Get SimpleImpersonation Lib to run this program with different admin right (optional)
Install only the administration console component on your dev workstation and run the following program :
It will print in the console all Windows updates with UpdateInstallationStates.Downloaded
using System;
using Microsoft.UpdateServices.Administration;
using SimpleImpersonation;
namespace MAJSRS_CalendarChecker
{
class WSUS
{
public WSUS()
{
// I use impersonation to use other logon than mine. Remove the following "using" if not needed
using (Impersonation.LogonUser("mydomain.local", "admin_account_wsus", "Password", LogonType.Batch))
{
ComputerTargetScope scope = new ComputerTargetScope();
IUpdateServer server = AdminProxy.GetUpdateServer("wsus_server.mydomain.local", false, 80);
ComputerTargetCollection targets = server.GetComputerTargets(scope);
// Search
targets = server.SearchComputerTargets("any_server_name_or_ip");
// To get only on server FindTarget method
IComputerTarget target = FindTarget(targets, "any_server_name_or_ip");
Console.WriteLine(target.FullDomainName);
IUpdateSummary summary = target.GetUpdateInstallationSummary();
UpdateScope _updateScope = new UpdateScope();
// See in UpdateInstallationStates all other properties criteria
_updateScope.IncludedInstallationStates = UpdateInstallationStates.Downloaded;
UpdateInstallationInfoCollection updatesInfo = target.GetUpdateInstallationInfoPerUpdate(_updateScope);
int updateCount = updatesInfo.Count;
foreach (IUpdateInstallationInfo updateInfo in updatesInfo)
{
Console.WriteLine(updateInfo.GetUpdate().Title);
}
}
}
public IComputerTarget FindTarget(ComputerTargetCollection coll, string computername)
{
foreach (IComputerTarget target in coll)
{
if (target.FullDomainName.Contains(computername.ToLower()))
return target;
}
return null;
}
}
}