--- Juanma Barranquero <lekktu@gmail.com> wrote: ...

Though, if you're using Emacs on Windows and you do want it to use a different HOME you can set HOME=C:\this\is\my\emacs\home as a new string value in the HKLM\Software\Gnu\Emacs key of the registry.

On Dec 25, 2007 2:36 AM, Benjamin L. Russell <dekudekuplex@yahoo.com> wrote:

...

However, usually I steer clear of the registry unless absolutely necessary because making a mistake there can render Windows unbootable.

Setting something in HLKM\Software\GNU\Emacs would not render your Windows unbootable, though it *could* preclude Emacs from starting.

...

In that case, though, would you happen to know which value in the registry would allow me to override HOMEPATH for GHCi?

AFAIK, GHCi does not read anything from the registry. You can use the registry to set HOME (and perhaps modify HOMEPATH / HOMEDRIVE), but the effect wouldn't be GHCi-specific.

What I said about Emacs works because Emacs for Windows takes the trouble to read HKLM\Software\GNU\Emacs and interpret some keys as environment variables.

This information is all very useful for customizing Emacs. Thank you for sharing this information. In that case, may I suggest to the developers of GHCi that in the next release, they design GHCi to read the Windows registry for HKEY_LOCAL_MACHINE\SOFTWARE\Haskell\GHCi\<next-release-version-number> for a HOME key set as the GHCi HOME environmental variable, so that I can set HOME=<drive-letter>:\this\is\my\GHCi\home there (also well as adding suitable documentation for this new feature in the FAQ)? There is already a directory there for Hugs called HKEY_LOCAL_MACHINE\SOFTWARE\Haskell\Hugs\WinhugsSep 2006, and it would seem to make sense to add a directory for GHCi there as well. Benjamin L. Russell