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IVssBackupComponents :: InitializeForBackup失败，并显示E_UNEXPECTED错误。 而在事件查看器有两个误区：IVssBackupComponents :: InitializeForBackup失败
错误1
Volume Shadow Copy Service error: A critical component required by
the Volume Shadow Copy service is not registered. This might
happened if an error occurred during Windows setup or during
installation of a Shadow Copy provider.
The error returned from
CoCreateInstance on class with CLSID
{e579ab5f-1cc4-44b4-bed9-de0991ff0623} and Name IVssCoordinatorEx2
is [0x80040154, Class not registered ].
Operation:
Instantiating VSS server
Volume Shadow Copy Service error: Unexpected error calling routine
CoCreateInstance. hr = 0x80040154, Class not registered.
Operation:
Instantiating VSS server
我创建简单的 “Hello World” VSS程序时出现错误：
#include "vss.h"
#include "vswriter.h"
#include <VsBackup.h>
#include <stdio.h>
int main()
{
#define CHECK_PRINT(result) printf("%s %#08x\n",result==S_OK?"S_OK":"error", result)
HRESULT result = CoInitialize(NULL);
CHECK_PRINT(result);
IVssBackupComponents *VssHandle;
result = CreateVssBackupComponents(&VssHandle);
CHECK_PRINT(result);
result = VssHandle->InitializeForBackup();
CHECK_PRINT(result);
return 0;
}
它报告了相同的输出 S_OK 00000000 S_OK 00000000 错误0x80042302
在我的主要开发的Windows 10 PC和虚拟Windows10用干净的安装。 VSS，swprv服务正在运行。