I booted an SCCM Task Sequence boot image this morning in VMWare Workstation and received the following error: "This application has failed to start because wdi.dll was not found. Re-installing the application may fix this problem".

Oh of course that makes perfect sense......arhhh actually no. After a bit of searching it appears as thought this is an issue with the VMWare Workstation Drivers. Earlier I'd added the entire drivers directory from the VMWare Tools directory to SCCM. Bad move! All you need is the the vmxnet and scsi directories. Remove all the others, re-generate the Boot Image and you're away!