[Haskell-cafe] GHC for Windows - no installer

I'd like to have GHC available to me, but some of the PCs I work on are extremely tight on space, or "locked down" in such a way that I can't install GHC on them. To get around this, I was considering copying GHC from my development PC onto a pen drive, and then using that (setting PATH when I needed access to GHC). My question is, will this work? Can the Windows install of GHC be copied around, or does it rely on registry entries or other system configuration in such a way that it has to be "properly" installed? Thanks, Paul.