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redundant info?

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#if !defined(AFX_CAR_H__508BCBED_9A24_4023_A08C_D2C336BDB343__INCLUDED_)
#define AFX_CAR_H__508BCBED_9A24_4023_A08C_D2C336BDB343__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

......

#if !defined is the same as #pragma once. if MSC_VER > 1000 it also work, is #pragma once redundant?

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