Most likely, it's a one-time issue. Under KiXtart 4.x it would be a matter of enumerating the computers with any of the NetView() UDFs, loop through the array and just write to the specified registry key, independent of whether the value is already set correctly or not.
code:
; pseudo-code
$comps=COMNetView()
for each $comp in $comps
$rc=writevalue('\\'+$comp+'\HKEY_LOCAL_MACHINE\...)
if @ERROR
? 'Error '+@ERROR+' = '+@SERROR+' on comp '+$comp
endif
next

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There are two types of vessels, submarines and targets.