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In my application i am using class Process from System.Diagnostic...
For example: After client click on web page, on server side starting method
Process.Start("applic.exe", arg);
, but applic.exe NOT YET Starting :(
I trying start it from command-line (cmd) with arg... all working fine...
May be problem with security with IUSR_COMP account or w3wp process ?

Thanks for advice...

Have you tried passing the full path to your exe?

Is Process.Start throwing an exception? If so, what is it?

If it is a permissions problem, try setting the permissions on the exe, or using the overload that takes a domain, username and password.

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Have you ever checked your server's task manager after clicking your web page to see whether or not the process have started ;) ? I hope you will find your solution from the following link.
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1) I try full path to .exe - file is found...
2) I try throwing exception... nothing happend
3) exe file placed in shared folder for all users..
4) I try overloaded with username, pass, and domain... nothing happend

Thanks Nick...

P.S. This file, which I try to start actually loaded into memory and is currently working, but I need that when run it executes the commands from the command line...
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Could you provide a small sample program that demonstrates your problem? When you add more info, make sure to edit your original question rather than adding an answer. This seems to work for me:
static void Main(string[] args)
	string str = System.Reflection.Assembly.GetEntryAssembly().Location;
	if (args.Length == 0) System.Diagnostics.Process.Start(str, "hello");

When you run that console application, it will launch a second instance of itself and that second instance will detect the command line argument, which it will interpret as meaning that it should not launch any more instances of itself.
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