In order to succesfully convert Windows systems to a VMware virtual machine, you need to install the sysprep files of the to be converted host. Below is a list of downloads to these sysprep files:
The base folder of where to put the files is always:
For SBS, use their standard counterparts.
2017-07-24: Fixed several of the download links as they were deprecated.
2011-10-10: I've added several deploy.cab files because the installables do not allow easy access to the files unless you actually install it on a Windows matching the package's OS.