Windows 7注册表问题 [英] Windows 7 Registry Problem

问题描述

此调用用于打开注册表项:

This call is used to open the Registry Key:

HKEY hKey;
LPCTSTR CFDW_Reg_Key = TEXT("SOFTWARE\\Company A\\Application_Name\\1.13"); 

result = RegOpenKeyEx( HKEY_LOCAL_MACHINE,
    CFDW_Reg_Key,
    NULL,           
    KEY_READ | KEY_WRITE,
    &hKey);

以下调用在Windows XP计算机上有效，但在Windows 7计算机上返回错误代码= 2.

The following call works on a Windows XP computer, but returns an error code=2 on my Windows 7 computer.

HKEY hKey;
DWORD buflen;
LPCWSTR REG_INSTALL_PATH_NAME = TEXT("InstallPath");
		
result = RegQueryValueEx(hKey, REG_INSTALL_PATH_NAME, 0, 0, 0, &buflen);

任何帮助将不胜感激.

谢谢.

Scott

Any help would be greatly appreciated.

Thank you.

Scott

推荐答案

返回码2表示ERROR_FILE_NOT_FOUND ...
您的应用程序是在Windows 7上作为64位应用程序运行还是作为32位应用程序运行(您可以使用任务管理器进行检查)?该问题可能是由32位和64位应用程序的不同注册表配置单元引起的.当您告诉HKLM\Software\Wow6432Node打开HKLM\Software时，实际上是一个32位程序.因此，我建议仔细检查这些可能性.

Return code 2 means ERROR_FILE_NOT_FOUND...
Does your application run as a 64bit application or as a 32bit application on Windows 7 (you can check that with the task manager)? The problem might arise from the different registry hives for 32bit and 64bit applications. A 32bit program actually looks at HKLM\Software\Wow6432Node when you tell it to open HKLM\Software. Hence I''d suggest to scrutinize these possibilities.

尝试一下.

try this.

REGSAM flag = KEY_WOW64_32KEY or KEY_WOW64_64KEY; // fake code

result = RegOpenKeyEx( HKEY_LOCAL_MACHINE,
    CFDW_Reg_Key,
    NULL,
    KEY_READ | KEY_WRITE | flag,
    &hKey);

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