Load REG_MULTI_SZ entry

I want to be able to use nsis to load a REG_MULTI_SZ entry into the registry. The nsis documentation doesn't seem to address this. I came across a solitary archive post about reading a REG_MULTI_SZ entry.

Can a nsis script do this? If so, how? If not, is there a viable, appropriate alternative?

I want to do something equivalent to the list of file types associated with Win2000's backup utility:
HKLM ... FilesNotToBackup
TempFiles REG_MULTI_SZ \Temp\*.* /s
UsrDumpFiles REG_MULTI_SZ \user.dmp /s

Try this: