I dont know how but on my win98 comp i wasn't able to see the thumbnail view of jpeg/jpg files but could see the thumbnails of bmps/gifs/html etc (View as web-page was enabled in Explorer)

I tried running regsvr32.exe /i shdocvw.dll but that didn't help


So I created a new key in HKEY_CLASSES_ROOT\.jpeg and named it ShellEx

Created a sub-key in ShellEx -> {BB2E617C-0920-11d1-9A0B-00C04FC2D6C1}

and then copied the value of the
/.bmp/shellex/{BB2E617C-0920-11d1-9A0B-00C04FC2D6C1} "default" string to the /jpeg one

and can now view the thumbnail image


But I have three questions..

1) What is the actual data value to be written in the Default String

2) What does {BB2E617C-0920-11d1-9A0B-00C04FC2D6C1} stand for.

3) Does anybody have an idea how can or did this thing happen?


Sorry if i dont make any sense.