CODEWITHSUNDEEP
c#process32-bit
FilFar
FilFar

Reputation: 21

How to run process as 32 bit (Application doesn't work for 32bit OS)

First - I am newbie on this website so I am carefull on begginning.

I have a problem with my process. I want to start it as 32 - 64 bit process no only 64 bit. I try changing debug configurations in my Visual Studia 2010 on AnyCPU, x64, x86 but it doesn't work.

My Code is here:

public static void startMinecraft(bool mode, string ramMax, string ramMin, string username, string sessionID, bool debug, string javafold, string mainfolder, string server)
        {
            string appPath = Path.GetDirectoryName(Application.ExecutablePath) + @"\";
            string appData = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + @"\";

            Process proc = new Process();
            proc.StartInfo.UseShellExecute = false;
            if (Environment.Is64BitProcess)
            {
                MessageBox.Show("yes"); // it is always yes
            }
            else 
            {
                MessageBox.Show("no");
            }

            if (proc.StartInfo.EnvironmentVariables.ContainsKey("APPDATA"))
                proc.StartInfo.EnvironmentVariables["APPDATA"] = @appData + mainfolder + "\\" + server;
            else
                proc.StartInfo.EnvironmentVariables.Add("APPDATA", @appData + mainfolder + "\\" + server);

            if (debug == true)
            {
                proc.StartInfo.FileName = @appData + javafold + "\\jre\\bin\\java.exe";
            }
            else
            {
                proc.StartInfo.FileName = @appData + javafold + "\\jre\\bin\\javaw.exe";
            }

            //Online and offline modes
            if (mode == true)
            {
                proc.StartInfo.Arguments = "-cp \"" + appData + mainfolder + "/.minecraft/bin/minecraft.jar;" + appData + mainfolder + "/.minecraft/bin/lwjgl.jar;" + appData + mainfolder + "/.minecraft/bin/lwjgl_util.jar;" + appData + mainfolder + "/.minecraft/bin/jinput.jar;\" ";
                proc.StartInfo.Arguments += "\"-Djava.library.path=" + appData + mainfolder + "/.minecraft/bin/natives\" -Xmx" + ramMax + "M -Xms" + ramMin + "M net.minecraft.client.Minecraft " + username + " " + sessionID;
            }
            else
            {
                proc.StartInfo.Arguments = "-cp \"" + appData + mainfolder + "\\" + server + "\\.minecraft\\bin\\minecraft.jar;" + appData + mainfolder + "\\" + server + "\\.minecraft\\bin\\lwjgl.jar;" + appData + mainfolder + "\\" + server + "\\.minecraft\\bin\\lwjgl_util.jar;" + appData + mainfolder + "\\" + server + "\\.minecraft\\bin\\jinput.jar;\" ";
                proc.StartInfo.Arguments += "\"-Djava.library.path=" + appData + mainfolder + "\\" + server + "\\.minecraft\\bin\\natives\" -Xmx" + ramMax + "M -Xms" + ramMin + "M -XX:MaxPermSize=256m net.minecraft.client.Minecraft " + username;
            }
            proc.Start();
        }

This process works perfectly but only on 64 bit OS platforms.

Error on 32 bit OS is:

System.ComponentModel.Win32Exception (0x80004005): The specified executable is not a valid application for this OS platform.
   at System.Diagnostics.Process.StartWithCreateProcess(ProcessStartInfo startInfo)
   at System.Diagnostics.Process.Start()
   at WindowsFormsApplication1.Form1.startMinecraft(Boolean mode, String ramMax, String ramMin, String username, String sessionID, Boolean debug, String javafold, String mainfolder, String server)
   at WindowsFormsApplication1.Form1.button1_Click(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent) etc...

Thanks for all help! And sorry for my mistakes in english.

Upvotes: 1

Views: 2753

Answers (2)

Markus Safar
Markus Safar

Reputation: 6590

If I interpret the stacktrace correctly the problem lies not within your application but the application you are trying to execute. So your java.exe and/or javaw.exe seem to be running on 64 bit only.

Upvotes: 0

MangO_O
MangO_O

Reputation: 423

You should just consider making a 32 bit exe, this will work on 32 and 64

Upvotes: 2

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