Testing for C # CreateProcess

A strange phenomenon, in C # use process to start a process, the startup file name must be the system-specified extension. EXE, and I use the native Win32API:: CreateProcess () does not have this restriction, later encountered similar problems to pay attention to

The following example: Com.aaa,com.exe are the same executable file, but the extension is not the same

[TestMethod ()]          Public void simple1111_test ()       {            varnew  System.Diagnostics.Process ();                         @" e:\com.aaa " ;             var bb = process. Start ();}

The run failed, but the following test

[TestMethod ()]          Public void simple1111_test ()       {            varnew  System.Diagnostics.Process ();                         @" E:\com.exe " ;             var bb = process. Start ();}

Run successfully

Use the native Win32API test com.aaa below

sizeof (SI)};       Process_information Pi;       = Startf_useshowwindow;        = TRUE;      =:: CreateProcess (    TEXT ("e:\\com.aaa"),      null, null   ,     null ,    FALSE,        create_new_console,    null,        null,    &si,    &pi);        int error = GetLastError ();   

This is another success.
Indicates that the kernel did not detect the extension of the execution file, and the. NET Library Process class was detected

Testing for C # CreateProcess