John Paul Ashenfelter

The problem: Some files downloaded using Safari on OSX had a .rdp extension appended after the existing extension (eg myfile.txt.rdp)

The details: This is a problem with CoRD 0.5.4 (the latest stable release). It registers itself to basically handle all files that have the ‘application/octet-stream’ mime type. In many cases, if  the server isn’t providing a mime type it gets assigned ‘application/octet-stream’ thus the .rdp extension added.

The solution: The simplest solution is to download a CoRD 0.5.5 nightly (I’m using r633) and install it, which will update the LaunchServices database and get CoRD registered to open only rdp files. More is at http://discussions.apple.com/thread.jspa?threadID=2476698&tstart=-1.