As the topic states, if you're trying to install VDDK 1.1 you'll notice there is a shared library package that is missing by default on VMware vMA 4.0, take a look here for the solution:
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William Lam
VMware vExpert 2009
VMware ESX/ESXi scripts and resources at:
VMware Code Central - Scripts/Sample code for Developers and Administrators
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