This error message indicates that the VBScript engine is not currently registered on the machine where the install/uninstall is taking place.
The VBScript engine can be quickly registered by following these steps:
Run Command Prompt as administrator:
Start Menu -> All Programs -> Accessories
Right click on Command Prompt and select Run as administrator
If you are using 32-bit version of Windows type:
into the Command Prompt and hit Enter
If you are using 64-bit version of Windows type:
into the Command Prompt and hit Enter, then for both 32/64 bit type
into the Command Prompt and hit Enter.