This posting is for those that have problems downloading RAR and 7Z Files with internet explorer. (When IE doesn't open a download-window but tries to display the files and utterly fails just showing a jumble of random chars)You can try to use "Save Target As" but this won't work on sites like Elric-M that use redirections and protect themself from direct access to the download links.
The problem is that newer versions of IE on WinXP ignore the file-extensions and look at the mime-type instead. While the HTML specification says that this is the correct way to go (there ARE operating systems without file extensions, after all), common practice in the WWW is to ignore this, and provide just the download link without specification what file-type it is, in these cases IE realizes that it can't display a few common formats like ZIP or EXE but in a fit of megalomania thinks that it can display everything else.
You can disable this feature in the Registry under:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_MIME_SNIFFING
by setting "iexplore.exe" to 00000000
For those that don't know how to do it (and trust me that I don't want to break their PCs) here's a .reg file, you just need to start.
http://home.tiscali.de/jo.ge1/ie_mime_sniff.reg