From the SMS email discussion list. If you are having the problem exhibited by KB914388, this is useful information:
"We received a fix, from MS, to test and on one machine it has been
successful, the fix was to edit
HKLM\System\CurrentControlSet\Services\DHCP\DependOnService and append the
word "ProtectedStorage" without the quotes, the Reg key is a REG_MULTI_SZ so
if you want to test this use Regedt32,.."