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a1s,

My bug was not a bad one, although you are partially correct.

Please look at this log below.  Notice that it works without
quotation marks in one place, but not the other?  I would
still consider it a bug.

---
C:\Python24\Scripts>roundup-admin.bat
Roundup 1.1.0 ready for input.
Type "help" for help.
Note: command history and editing not available
roundup> help
Usage: help topic
Give help about topic.

commands  -- list commands
<command> -- help specific to a command
initopts  -- init command options
all       -- all available help

roundup> export
Enter tracker home: C:\roundup\trackers\misas
Error: Not enough arguments supplied

Usage: export [class[,class]] export_dir
        Export the database to colon-separated-value files.

        Optionally limit the export to just the names classes.

        This action exports the current data from the
database into
        colon-separated-value files that are placed in the
nominated
        destination directory.

roundup> export "C:\roundup\export"
roundup> export C:\roundup\export
Traceback (most recent call last):
  File "C:\Python24\Lib\site-packages\roundup\admin.py",
line 1356, in run_comma
nd
    ret = function(args[1:])
  File "C:\Python24\Lib\site-packages\roundup\admin.py",
line 1082, in do_export

    os.makedirs(dir)
  File "C:\Python24\lib\os.py", line 156, in makedirs
    makedirs(head, mode)
  File "C:\Python24\lib\os.py", line 159, in makedirs
    mkdir(name, mode)
OSError: [Errno 17] File exists: 'C:'
roundup>
---

So, I did manage to get an export, and thank you for that!
:)  But it's still a bug.