如何检查exe是否设置为LARGEADDRESSAWARE

我正在开发一个C＃程序，它将加载文件并获取诸如加载文件创建日期，修改日期，大小等信息。我需要知道的另一件事是加载的文件（ executable.exe ）是否与LARGEADDRESSAWARE标志链接。 FileInfo类不提供此信息。

有谁知道如何在C＃中找出给定的executable.exe是否与LARGEADDRESSAWARE标志链接（处理大于2 GB的地址）？

Answer 1

以下是一些检查Large Address Aware标志的代码。 您所要做的就是传递一个指向可执行文件开头的流。

 IsLargeAware("some.exe"); static bool IsLargeAware(string file) { using (var fs = File.OpenRead(file)) { return IsLargeAware(fs); } } /// 
 /// Checks if the stream is a MZ header and if it is large address aware /// 
 /// Stream to check, make sure its at the start of the MZ header ///  ///  static bool IsLargeAware(Stream stream) { const int IMAGE_FILE_LARGE_ADDRESS_AWARE = 0x20; var br = new BinaryReader(stream); if (br.ReadInt16() != 0x5A4D) //No MZ Header return false; br.BaseStream.Position = 0x3C; var peloc = br.ReadInt32(); //Get the PE header location. br.BaseStream.Position = peloc; if (br.ReadInt32() != 0x4550) //No PE header return false; br.BaseStream.Position += 0x12; return (br.ReadInt16() & IMAGE_FILE_LARGE_ADDRESS_AWARE) == IMAGE_FILE_LARGE_ADDRESS_AWARE; } 

Answer 2

/LARGEADDRESSAWARE的MSDN文档指出：

如果应用程序与/ LARGEADDRESSAWARE链接，则DUMPBIN / HEADERS将显示该效果的信息。

如果您正在寻找以编程方式执行此操作的方法，则可以从应用程序调用dumpbin并解析输出。

更新：

这里还有一篇很好的博客文章，可以更深入地讨论这个问题。

Answer 3

从上面的Will的回答我在我的x86安装包中使用以下内容：

  static bool LargeAware(string file) { using (var fs = File.Open(file, FileMode.Open, FileAccess.ReadWrite, FileShare.None)) { bool b = LargeAware(fs); fs.Close(); return b; } } const int IMAGE_FILE_LARGE_ADDRESS_AWARE = 0x20; static bool LargeAware(Stream stream) { var br = new BinaryReader(stream); var bw = new BinaryWriter(stream); if (br.ReadInt16() != 0x5A4D) //No MZ Header return false; br.BaseStream.Position = 0x3C; var peloc = br.ReadInt32(); //Get the PE header location. br.BaseStream.Position = peloc; if (br.ReadInt32() != 0x4550) //No PE header return false; br.BaseStream.Position += 0x12; long nFilePos = (int)br.BaseStream.Position; Int16 nLgaInt = br.ReadInt16(); bool bIsLGA = (nLgaInt & IMAGE_FILE_LARGE_ADDRESS_AWARE) == IMAGE_FILE_LARGE_ADDRESS_AWARE; if (bIsLGA) return true; nLgaInt |= IMAGE_FILE_LARGE_ADDRESS_AWARE; long nFilePos1 = bw.Seek((int)nFilePos, SeekOrigin.Begin); bw.Write(nLgaInt); bw.Flush(); long nFilePos2 = br.BaseStream.Seek(nFilePos, SeekOrigin.Begin); nLgaInt = br.ReadInt16(); bIsLGA = (nLgaInt & IMAGE_FILE_LARGE_ADDRESS_AWARE) == IMAGE_FILE_LARGE_ADDRESS_AWARE; return bIsLGA; }