As a practical scenario, you encounter the below error message when you use Regsvr32.exe to register the Olemsg32.dll or Cdo.dll files:
“LoadLibrary ("olemsg32.dll") failed.
GetLastError returns 0x0000007e. LoadLibrary ("cdo.dll") failed.
GetLastError returns 0x0000007e.”
Once the above error message appears, the system becomes unmountable making the data saved in the hard drive inaccessible.
The root cause for the occurrence of the above error message is the calling of Olemsg32.dll and Cdo.dll files from the wrong installation point.
To resolve the issue and access the data, you need to follow the below steps:
1. Copy the Olemsg32.dll or Cdo.dll file to the below location:
C:\Program Files\Common Files\System\Mapi\1033\NT folder
2. Next, register the files by using Regsvr32.exe. For example, type the below command:
The following message is displayed to indicate that the command is successful:
DllRegisterServer in Olemsg32.dll succeeded.
However, if the problem persists even after following the above steps, the best option left is to reinstall Windows. A clean reinstall of Windows will erase all data from the selected hard drive partition. To recover the lost data from a formatted hard drive partition or volume, you need use powerful data recovery software. These data recovery applications use advanced scanning mechanisms to recover lost data. Built with highly graphical user-interface, automated recovery procedure and advanced features, these data recovery tools serve as precise and recovery centric tools.
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