Use finder to connect to IIS ftp server

I personally am not surprised this is broken, but then again, I have larger faults with Finder's ftp implementation than this problem. From someone that's used to ftp on the command line, it's second nature to think of the @ as reserved to delineate the user part of the string with the host name part of the string, so perhaps that's a bug that the author of the code introduced.

Just as you're finding it hard to believe this is broken, I find it hard to believe Apple hasn't removed ftp from finder entirely and just pointed people to the Mac App store for a ftp client of their choosing at this point. Here's to hoping they do that for 10.9.

Assuming you are in need of a solution today, here are suggestions to work around it:

• Try using ftp from the command line
• Try to escape the @ with \ or otherwise trick the finder into getting past it as a delimiter
• Use another program like Transmit that has more robust handling of any valid strings.
• Searching the Mac App store in April 2013 yields no less than 56 choices for FTP.

This question has some suggestions for enabling the missing menu option (that question is about 10.7, but worth a try).

I think the command line version isn't working because you need to provide a final argument, specifying where to mount the shared directory locally. On my 10.6.8 machine, man mount_smbfs gives this example:

mount -t smbfs //username:userpass@myserver/PUBLIC /smb/public