Okay, I have this working on my machine, but I manually hacked the registry. It's set up to treat BUM files as Photoshop documents and pretend they're BMPs (which isn't much of a pretense, since they are). The main portion of this was to make them show up in thumbnail view which does work swimmingly on my machine now. I THINK the following is the correct Regfile syntax, but if not, will someone please correct me? If it is correct, then the following placed in a text file with no lines preceding the REGEDIT4 line, and with the extension as .reg, will add the necessary keys and values to the Windows registry to make BUM files show up in thumbnail view and open with Photoshop. BEGIN BELOW RULE

---

REGEDIT4

[HKEY_CLASSES_ROOT.BUM]
@="Photoshop.BMPFile"
"Content Type"="image/bmp"

[HKEY_CLASSES_ROOT.BUMShellEx]


[HKEY_CLASSES_ROOT.BUMShellEx{BB2E617C-0920-11d1-9A0B-00C04FC2D6C1}]
@="{3F30C968-480A-4C6C-862D-EFC0897BB84B}"

[HKEY_CLASSES_ROOT.BUMShellNew]
"NullFile"=""