Introduction :
Just installed VirtualBox for testing and relauched it this today encounter a COM object error.

Failed to create the VirtualBox COM object.
The application will now terminate.

Callee RC: REGDB_E_CLASSNOTREG (0×80040154)

After investigation, found out it was a common Vista issue. But re-register the VirtualBox object will resolve it.

Enviroment :
Windows XP
VirtualBox 3.1.2

Installation / Usage

To fix it:

1) Open a standard command line ( Run > cmd )

2) “cd C:\Program Files\Sun\VirtualBox”

3) issue “VBoxSVC /ReRegServer”

4) issue “regsvr32 VBoxC.dll”

Viola , resolved

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