SecurityExceptio nduring start of a new Process form Application under Windows Server 2003

[SMichal]

Hi, I've got a simple problem when I try to start a new process from my
application.
I'm starting a new process like this:

Process proc = new Process();
proc.StartInfo.Arguments = "";
proc.StartInfo.FileName = @"C:\Submit.bat";
proc.StartInfo.CreateNoWindow = false;
proc.Start();
proc.WaitForExit();

label1.Text = "ExitCode = " + proc.ExitCode.ToString();

....everything works fine, but only under Windows XP....when I start the same
application under Windows Server 2003, I'm getting this exception:

System.Security.SecurityException: Request failed.

at
System.Security.CodeAccessSecurityEngine.ThrowSecu rityException(Assembly
asm, PermissionSet granted, PermissionSet refused, RuntimeMethodHandle rmh,
SecurityAction action, Object demand, IPermission permThatFailed)
at System.Security.CodeAccessSecurityEngine.ThrowSecu rityException(Object
assemblyOrString, PermissionSet granted, PermissionSet refused,
RuntimeMethodHandle rmh, SecurityAction action, Object demand, IPermission
permThatFailed)
at System.Security.CodeAccessSecurityEngine.CheckSetH elper(PermissionSet
grants, PermissionSet refused, PermissionSet demands, RuntimeMethodHandle
rmh, Object assemblyOrString, SecurityAction action, Boolean throwException)
at
System.Security.CodeAccessSecurityEngine.CheckSetH elper(CompressedStack cs,
PermissionSet grants, PermissionSet refused, PermissionSet demands,
RuntimeMethodHandle rmh, Assembly asm, SecurityAction action)
at WindowsApplication1.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(MouseEventAr gs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons
button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.O nMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.W ndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg,
IntPtr wparam, IntPtr lparam)
The action that failed was:
LinkDemand
The type of the first permission that failed was:
System.Security.PermissionSet
The Zone of the assembly that failed was:
Internet

....how can I set the Security for starting of a new process ?