I have this:
img src="/cgi-bin/simple.gif" > which works, and displays the image ok on client
And I have this:
img src="/cgi-bin/webapp.exe" > which does not work, after messing 2 days with permisions in IIS7.
The EXE file just "dumps" a binary GIF file to console if I run it directly on the server (win7). But it displays nothing (broken picture) on the client browser.
The web server seems not to run my exe.
How to configure IIS7 to do it? step by step please.(i am novice to it)
Thanks
If you want to execute the exe file in IIS, you can use the asp.net application. Use System.Diagnostics.Process's start method to run the exe.
The exe should inside the server and the application pool should have the permission to access the exe.
Here are the sample code
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btn_click(object sender,EventArgs e)
{
ProcessStartInfo info = new ProcessStartInfo();
info.FileName = #"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";
info.Arguments = "";
info.WindowStyle = ProcessWindowStyle.Normal;
Process pro = Process.Start(info);
pro.WaitForExit();
}
If you can test it in IIS Express, but cannot call it when deployed to IIS, it is a permission problem of the application pool. The application pool needs to be assigned FullControl permissions. For detailed operation, please refer to this answer.
Related
I'm experiencing an issue while downloading an exe file from within an UWP App. The EXE cannot be run after downloading. When I download it via any browser, it works as expected. My research so far brought me to Alternate Data Streams.
When I download the EXE via any browser, the file gets an ADS like My.EXE:Zone.Identifier:$DATA with ZoneId=3 and some additional stuff inside.
When I download the same file from my UWP, it's also like My.EXE:Zone.Identifier:$DATA, but $DATA is empty with a size of 0 bytes like in the screenshot.
Did anyone experience the same issue and found a solution? Any hint would be great.
EDIT[Code added]:
private async void Download_Click(object sender, RoutedEventArgs e)
{
var uri = new Uri(resourceLoader.GetString("Link"));
var success = await Windows.System.Launcher.LaunchUriAsync(uri);
}
Hey, I am trying to get a service to start my program but it isn't showing the GUI. The process starts but nothing is shown. I have tried enabling 'Allow service to interact with desktop' but that still isn't working.
My program is a computer locking device to stop unauthorised users from accessing the computer. I am running windows 7 with a 64 bit OS.
Here is the code for my service:
protected override void OnStart(string[] args)
{
Process p = new Process();
p.StartInfo.FileName = "notepad.exe";
p.Start();
FileStream fs = new FileStream(#"C:\Users\David\Documents\Visual Studio 2010\Projects\LockPCService\LockPCService\bin\Debug\ServiceLog.dj",
FileMode.OpenOrCreate, FileAccess.Write);
StreamWriter m_streamWriter = new StreamWriter(fs);
m_streamWriter.BaseStream.Seek(0, SeekOrigin.End);
m_streamWriter.WriteLine(" LockPCService: Service Started " + DateTime.Now + "\n" + "\n");
m_streamWriter.Flush();
m_streamWriter.Close();
}
protected override void OnStop()
{
FileStream fs = new FileStream(#"C:\Users\David\Documents\Visual Studio 2010\Projects\LockPCService\LockPCService\bin\Debug\ServiceLog.dj",
FileMode.OpenOrCreate, FileAccess.Write);
StreamWriter m_streamWriter = new StreamWriter(fs);
m_streamWriter.BaseStream.Seek(0, SeekOrigin.End);
m_streamWriter.WriteLine(" LockPCService: Service Stopped " + DateTime.Now + "\n"); m_streamWriter.Flush();
m_streamWriter.Close();
}
To try and get the service working I am using notepad.exe. When I look at the processes notepad is running but there is no GUI. Also the ServiceLog is there and working each time I run it.
Any ideas on why this isn't working?
Thanks.
This article explains Session 0 Isolation which among other things disallows services from creating a UI in Windows Vista/7. In your service starts another process, it starts in Session 0 and also will not show any UI. (By the way, the UI is created, it's just that Session 0 is never displayed). This article on CodeProject can help you create a process from a service on the user's desktop and show its UI.
Also, please consider wrapping you stream objects in a using statement so that they are properly disposed.
Services run under different account so notepad is run by another user and on another desktop so that's why you cannot see it. 'Allow service to interact with desktop' is not supported anymore starting from Vista.
I know this is a late post, but I found that this article was very helpful to me. I am running Windows 7 and the solution provided in this article works great.
If you download the code, there is a class called ApplicationLoader. Include that class in your project and then it's as simple as this:
// the name of the application to launch
String applicationName = "cmd.exe";
// launch the application
ApplicationLoader.PROCESS_INFORMATION procInfo;
ApplicationLoader.StartProcessAndBypassUAC(applicationName, out procInfo);
Services run in a different logon session and have a different window station from the user. That means that all GUI activity is segregated from the user's programs, not that the service can't display a GUI. Actually, this design makes it much easier to temporarily block access to the user's programs.
You'll need to call SwitchDesktop.
I have a simple task: A program (executable) is supposed to call a function of another program (also executable) with some parameters. Program A is supposed to be started, call the function and then terminate. Program B is legacy program that has a GUI and runs continuously. Both programs run on the same Windows PC and use the .NET Framework. I have no experience in web development and Program B is not supposed to run as a web service! Named pipes seem like a good option.
I researched what the best method would be and wanted to try WCF. The documentation claims that "A service endpoint can be part of a continuously available service hosted by IIS, or it can be a service hosted in an application". From that I understand that I can run Program B as a service without hosting a web server.
However everything I see in Visual Studio seems to presume I want to run a server. Wenn I want to create a new WCF project in Visual Studio the only options are a library or "A project for creating WCF service application that is hosted in IIS/WAS". Once I've created said project the debugger wants me to choose a browser for hosting the service.
In another StackOverflow topic a popular suggestion was using this website as a guide and simply removing the http references since the guide is for both named pipes and http. Another indication that it should be possible.
So can someone point me in the right direction? What am I missing? How can I use WCF with nothing related to Web Development involved?
You have already been on the way, it is enough to host the web service in Program B, without specifying a web server. this is called a self-hosted WCF. As the link you provided mentioned, the Service host class is used to host the WCF service, which means that we can host the service in the Console/Winform, and so on.
Here is an example of hosting the service in a Winform application.
public partial class Form1 : Form
{
ServiceHost serviceHost = null;
public Form1()
{
InitializeComponent();
Uri uri = new Uri("http://localhost:9009");
BasicHttpBinding binding = new BasicHttpBinding();
serviceHost = new ServiceHost(typeof(MyService), uri);
serviceHost.AddServiceEndpoint(typeof(IService), binding, "");
ServiceMetadataBehavior smb = new ServiceMetadataBehavior()
{
HttpGetEnabled = true
};
serviceHost.Description.Behaviors.Add(smb);
System.ServiceModel.Channels.Binding mexbinding = MetadataExchangeBindings.CreateMexHttpBinding();
serviceHost.AddServiceEndpoint(typeof(IMetadataExchange), mexbinding, "mex");
serviceHost.Open();
}
private void Form1_Load(object sender, EventArgs e)
{
if (serviceHost.State==CommunicationState.Opened)
{
this.label1.Text = "Service is running";
}
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
if (serviceHost.State==CommunicationState.Opened&&serviceHost.State!=CommunicationState.Closed)
{
serviceHost.Close();
}
}
}
[ServiceContract]
public interface IService
{
[OperationContract]
string Test();
}
public class MyService:IService
{
public string Test()
{
return DateTime.Now.ToLongTimeString();
}
}
After that, we could consume it by using a client proxy.
https://learn.microsoft.com/en-us/dotnet/framework/wcf/accessing-services-using-a-wcf-client
Feel free to let me know if there is anything I can help with.
I am running a console application with no UI and generate thumbmail images from pdf files. The compile file for this application works fine. However I have to call this compile file from windows service application that implement the the FileSystemWatcher class to detect when new pdf files are uploaded into the directory.
and I am using the suggestion from this link
How to run console application from Windows Service?
ProcessStartInfo info = new ProcessStartInfo(appName);
info.UseShellExecute = false;
info.RedirectStandardError = true;
info.RedirectStandardInput = true;
info.RedirectStandardOutput = true;
info.CreateNoWindow = true;
info.ErrorDialog = false;
info.WindowStyle = ProcessWindowStyle.Hidden;
Process process = Process.Start(info);
if (!process.HasExited)
{
LogEvent(process.ProcessName + "has started and called Thumbnail application");
}
else
{ LogEvent(process.ProcessName + "has been terminated"); }
I can see the process involking the "pdfThumbnail.exe" but I am getting this error when the application try to execute.
"System.Exception: Cannot create ActiveX component.
at Microsoft.VisualBasic.Interaction.CreateObject(String ProgId, String ServerName)
at PDFThumbnailCsharp.Main(String[] args)
"
As I have said above the pdfThumbnail.exe execute fine when i run the exe file.
Updates
This is the error from the SysInternals' Process Monitor
The machine-default permission settings do not grant Local Activation permission for the COM Server application with CLSID {FF76CB60-2E68-101B-B02E-04021C009402} and APPID
Unavailable to the user NT AUTHORITY\LOCAL SERVICE SID (S-1-5-19) from address LocalHost (Using LRPC). This security permission can be modified using the Component Services administrative tool.
I have changed the ownership of this CLSID to Administrator with Full control as described on this link
http://social.technet.microsoft.com/Forums/en-US/windowsserver2008r2general/thread/e303c7e1-16de-42fd-a1a4-7512c1261957
However I am still getting the same error.
Any help will be appreciated.
Thanks
This CLSID {FF76CB60-2E68-101B-B02E-04021C009402} is for Acrobat.Excha.PDDoc on my computer registry. Further investigation with Acrobat on this link https://forums.adobe.com/thread/1467460 revealed that Acrobat cannot be run from service.
What I have done for now until I have a better approach is to create a windows Task Scheduler that listen to an event raised by the windows service when new pdf are created and then trigger the console app that create the thumbnails.
I'm running a mixed MVC Application inside a sub folder of a web forms application.
Everything worked great in VS 2010 debug (Cassini) but when I deployed to IIS7.5
I got the following error:
'HttpContext.SetSessionStateBehavior' can only be invoked before
'HttpApplication.AcquireRequestState' event is raised.
It errors on the last line (httpHandler.ProcessRequest(HttpContext.Current);) in the default.aspx file of the MVC application sub folder.
public void Page_Load(object sender, System.EventArgs e)
{
string pathToRewriteTo = Request.Path.ToLowerInvariant().Replace("default.aspx", "Home/Index");
HttpContext.Current.RewritePath(pathToRewriteTo, false);
IHttpHandler httpHandler = new MvcHttpHandler();
httpHandler.ProcessRequest(HttpContext.Current);
}
However if I manually navigate to Home/Index from the MVC root folder I can see my application fine from there.
I've looked up the error being thrown and I only find answers dealing with server transfers and not MVC routes.
I have also already checked my IIS7.5 configuration for the route handling module, Application pool running in integrated mode, etc.
Any help would be appreciated.
We faced a similar issue. There are changes to MVCHttpHandler in MVC2 and above.
You need to change it to use httpContext.Server.TransferRequest.
Try the below snippet:
var httpContext = HttpContext.Current;
httpContext.Server.TransferRequest(Url, true); // change to false to pass query string parameters if you have already processed them