How do I find the current executable filename

Question

Possible Duplicate    How do I get the name of the current executable in C         An executable file loads an external library  Is there a way for the library to know the calling executable file      I would have sworn I saw the answer to this elsewhere  but I can t seem to find it anymore

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Environment GetCommandLineArgs   0

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If you want the executable   System Reflection Assembly GetEntryAssembly   Location   If you want the assembly that s consuming your library  which could be the same assembly as above  if your code is called directly from a class within your executable    System Reflection Assembly GetCallingAssembly   Location   If you d like just the filename and not the path  use   Path GetFileName System Reflection Assembly GetEntryAssembly   Location

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System Diagnostics Process GetCurrentProcess   MainModule FileName

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Assembly GetEntryAssembly

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This one was not included   System Windows Forms Application ExecutablePath     Joe

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I think this should be what you want   System Reflection Assembly GetEntryAssembly   Location   This returns the assembly that was first loaded when the process started up  which would seem to be what you want   GetCallingAssembly won t necessarily return the assembly you want in the general case  since it returns the assembly containing the method immediately higher in the call stack  i e  it could be in the same DLL

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In addition to the answers above   I wrote following test exe as console application  static void Main string   args      Console WriteLine      System Diagnostics Process GetCurrentProcess   MainModule FileName     Console WriteLine      System Reflection Assembly GetEntryAssembly   Location     Console WriteLine      System Reflection Assembly GetExecutingAssembly   Location     Console WriteLine      System Reflection Assembly GetCallingAssembly   Location       Then I compiled the project and renamed its output to the test2 exe file  The output lines were correct and the same   But  if I start it in the Visual Studio   the result is      d  test2 vhost exe      d  test2 exe      d  test2 exe      C  Windows Microsoft NET Framework v2 0 50727 mscorlib dll   The ReSharper plug-in to the Visual Studio has underlined the   System Diagnostics Process GetCurrentProcess   MainModule   as possible System NullReferenceException  If you look into documentation of the MainModule you will find that this property can throw also NotSupportedException  PlatformNotSupportedException and InvalidOperationException   The GetEntryAssembly method is also not 100   safe   MSDN      The GetEntryAssembly method can return null when a managed assembly   has been loaded from an unmanaged application  For example  if an   unmanaged application creates an instance of a COM component written   in C   a call to the GetEntryAssembly method from the C  component   returns null  because the entry point for the process was unmanaged   code rather than a managed assembly    For my solutions  I prefer the Assembly GetEntryAssembly   Location   More interest is if need to solve the problem for the virtualization  For example  we have a project  where we use a Xenocode Postbuild to link the  net code into one executable  This executable must be renamed  So all the methods above didn t work  because they only gets the information for the original assembly or inner process   The only solution I found is  var location   System Reflection Assembly GetEntryAssembly   Location  var directory   System IO Path GetDirectoryName location   var file   System IO Path Combine directory     System Diagnostics Process GetCurrentProcess   ProcessName     exe

[c#] How do I find the current executable filename?

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