I have installed 7.2 32-bit version ?f Eiffel Studio. I have a 64-bit Windows7 OS system. I have download the Traffic project  here https://bitbucket.org/nadiapolikarpova/traffic/downloads
Errors of Compilation

		Description	Location	Position	
	2	C Compiler Error: Fatal error C1083: Cannot open include file: 'windows.h': No such file or directory	w:\eiffel software\eiffelstudio 7.2 gpl\studio\spec\windows\include\eif_main.h	47, 1	
		Error code: C Compiler Error

Error: External C/C++ compilation failed.
What to do: Check the external C/C++ compilation for details.

Fatal error C1083: Cannot open include file: 'windows.h': No such file or directory.			
	2	C Compiler Error: Fatal error C1083: Cannot open include file: 'windows.h': No such file or directory	w:\eiffel software\eiffelstudio 7.2 gpl\studio\spec\windows\include\eif_main.h	47, 1	
		Error code: C Compiler Error

Error: External C/C++ compilation failed.
What to do: Check the external C/C++ compilation for details.

Fatal error C1083: Cannot open include file: 'windows.h': No such file or directory.			
	2	C Compiler Error: Fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\Bin\cl.EXE"' : return code '0x2'	NMAKE		
		Error code: C Compiler Error

Error: External C/C++ compilation failed.
What to do: Check the external C/C++ compilation for details.

Fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\Bin\cl.EXE"' : return code '0x2'			
	2	C Compiler Error: Fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\Bin\cl.EXE"' : return code '0x2'	NMAKE		
		Error code: C Compiler Error

Error: External C/C++ compilation failed.
What to do: Check the external C/C++ compilation for details.

Fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\Bin\cl.EXE"' : return code '0x2'			
	2	C Compiler Error: Please review the External Compilation output of the Outputs Tool.			
		Error code: C Compiler Error

Error: External C/C++ compilation failed.
What to do: Check the external C/C++ compilation for details.

Please review the External Compilation output of the Outputs Tool.			
	2	VD43: Precompiled file is missing or unreadable. File 'c:\users\???????\documents\eiffel user files\7.2\precomp\spec\windows\EIFGENs\vision2\W_code\msc\driver.exe'.			
		Warning code: VD43

Configuration error: precompiled file is missing or unreadable.
What to do: make sure that the file exists, that appropriate permissions
  are set, and that the precompiled C code has been compiled.

File: c:\users\???????\documents\eiffel user files\7.2\precomp\spec\windows\EIFGENs\vision2\W_code\msc\driver.exe			
	2	VD83: Warning that a setting could not be changed.			
		Warning code: VD83

Configuration warning: warning that a setting could not be changed.
What to do: do not change this setting or recompile the project from scratch.


Value of a setting could not be changed because the system is already compiled or uses a precompile: cls_compliant
Old: false
New: true