ppt.Presentations.Open(filename, MsoTriState.msoFalse, MsoTriState.msoFalse, MsoTriState.msoFalse);
Message = "Error HRESULT E_FAIL has been returned from a call to a COM component."
ppt.Presentations.Open 打开报错
Error HRESULT E_FAIL has been returned from a call to a COM component 报错的一个解决办法