Make full use of your bandwidth
- Auto-away on Minimize
- Switch to away mode whenever the client is minimized (and to back
- Automatically Follow Redirects
- A connected hub can send out a redirect request, asking your
client to disconnect from the current hub and joining another one.
Enable this to automatically join that other hub. (You will be
disconnected from the current hub no matter what.) If you leave it
disabled, you can use the Follow Redirect button to manually follow the
- Clear Search Box After Each Search
- After each search, your search terms will be cleared. The last 10
terms will be accessible through the drop-down.
- Open the Public Hubs Window at Startup
- Opens the Public Hub window at startup, and automatically
downloads the configured
public hub list.
- Open the Download Queue Window at Startup
- Shows the Download Queue window at startup.
- Open the Favorite Hubs Window at Startup
- Shows the Favorite Hubs window at startup.
- Open the Finished Downloads Window at Startup
- Shows the Finished Downloads window at startup.
- Automatically Search for Alternative Download Locations
- Every few minutes, the client will search for files in your
Download Queue to find more download locations (more users/sources). If
the download was started with a TTH root hash available, the autosearch
will find exact matches by searching via hash. Otherwise, the
autosearch will try to find matches by searching with a slightly
modified version of the filename.
- Automatically Match Queue for Auto Search Hits
- Enable to automatically download a user's list and match them as
sources for files in your Download Queue when they've been discovered
as a source for one of the files you're downloading. If you download
files in sets, that user is probably a source for many more files
you're downloading.Enable if unsure.
The drawbacks are that it might add slower sources, possibly increasing
the time needed to complete a download, and that you'll download a lot
of file lists.
- Open Private Messages in Their Own Window
- If you disable this option, a private message from a user appears
as a status line in main chat instead of in a separate window. This
could cause you to miss some messages if you don't check the chat
regularly. You may not care much for
private messages from other users. Ignoring them however, not only
lessens the (user-friendly) Direct Connect experience, but is not
always wise because failing to reply to a message from an Operator can
get you kicked or, in the worst case, permanently banned from that hub.
- Ignore Private Messages From Offline Users
- Enable this if you wish to ignore private messages from users
that are not online on the hub. These messages originate from hub bots
and generally contain useful information, like hub specific rules or
- Open Private Messages From Offline Users in Their Own Window
- Enable this if you want messages from hub bots in their own
window. When disabled they get sent as a status message in main chat
instead which is less annoying yet still informative. This option only matters if you're not
ignoring private messages from offline users (previous option).
- Open New File List Windows in the Background
- Keep this disabled if you want newly downloaded filelists to pop
up in front of other windows. It can
be very annoying to have a new window pop up when you're typing
- Open New Private Message Windows in the Background
- Keep this disabled if you want new private messages filelists to
pop up in front of other windows.
- Keep Duplicate Files in Your File List
- Decides whether to remove duplicate files from your share or to
list them but subtract their size from your total reported share size.
Duplicate files never count towards your share size, no matter what
this is set to.
- Register with Windows to Handle dchub:// and adc:// URL Links
- When set, DC++ will be the default handler for all dchub:// and
links. These links can appear on web pages, internet shortcuts on your
computer, or be typed and run as a program from
the Start Menu. Disable this if you prefer for a different
application to handle Direct Connect hub links. Disabling will make
DC++ remove the keys from the register.
- Register with Windows to Handle manget: URI Links
- When set, DC++ will register itself to handle magnet: links.
These links will let you search the Direct Connect network for a file
matching a given file hash, given that the magnet link contains
information appropriate for the Direct Connect network. DC++ uses
Magnethandler to give a choice between supported P2P applications when
magnet.exe is installed on the system or is located in the
application's directory. Disabling will make DC++ remove the key from
- Use Small Send Buffer
- Enable this option if download speeds slow down when uploading
files. Users on asynchronous lines with less upstream than downstream
will often notice this. Acknowledgement packets for incoming data have
to wait in line between the outgoing data. This results in slower
sending of acknowledgements packets resulting in a slowdown in the
incoming data transfer. Enabling this option will break the outgoing
data up into smaller packets so acknowledgement packets can get through
- Don't Delete File Lists When Exiting
- If this option is disabled, DC++ will delete the contents of the
FileLists directory, where file lists are stored, when
exiting. However, you can open already downloaded filelists
instead of downloading them again. These file lists have a chance of
being out of date, but for users on slow connections, keeping file
lists can save time. Since the file list isn't curent, don't be
surprised if the files you enqueue to download have been removed by the
user, or moved.
- Automatically Disconnect Users Who
Leave the Hub
- The Direct Connect spirit is all about sharing. You are only
sharing when you are connected to one or more hubs. In the past, users
of questionable integrity and spirit logged onto a hub, selected a
download, and disconnected from the hub again. If everyone did that,
there would be nothing to download. Enable this option to avert that
kind of behaviour. Note that you might need to disable this option
if you're connected to a hub that has a bad connection. The user will
regain his/her slot if he/she reconnects within 10 minutes, but you
might have opened up another slot for another user in the mean time.
This could cause a situation where you have way more upload slots in
use than you selected in the settings. Also, if you quit the hub,
people downloading from you will not be disconnected.
- Show Progress Bars for Transfers
- Enable this if you have CPU cycles to spare, and you will get
colored progress bars in the Transfer View.
- Enable Automatic SFV Checking
- Simple File Verification (SFV) is a scheme in which a set of
files are accompanied by a so-called sfv-file which contains CRC32
checksums of each file. If there is an sfv-file included, DC++ will
check that your download is free of corruption and retry the download
that wasn't the case.
- Automatically Refresh Share List Every Hour
- If you have a dynamic share (files getting added, moved or
deleted all the time) enabling this option is a must. Your filelist
will be refreshed every hour, keeping the users on the hub up to date
with your current share. Disabling
this option is really only needed for really large shares where
refreshing takes so much time that the client is unusable in the mean
- Use AntiFragmentation Method for
- This option will try to reserve the full space needed for a file
when starting the download. This should reduce the fragmentation of
files on your hard drive. (Fragmentation is bad because reading files
from your drive will take longer because the drive head has to hop from
place to place instead of reading in a continuous fashion.) Enable if unsure. The drawbacks are a
short pause at the start of every download during which the drive space
is reserved, less drive space being available while you are
downloading, and possibly losing progress on your download if Windows
crashes and DC++ cannot exit cleanly.
- Don't Send the Away Message to Bots
- When in away mode, don't send the away message to users that
appear to be bots. Having this option disabled is very annoying if you
get messages from bots that link chat from multiple users (the most
well known example is the Operator Chat facility found in many hubs).
Users are judged to be bots if they have an empty Connection type. Enable if unsure.
- Skip Zero-Byte Files
- When this option is enabled, any zero byte files you try to
download will be silently skipped. Sometimes empty files contain
information through their naming. However every file, even an empty
one, will consume some drive space.
- Break on First ADLSearch Match
- If you're using the ADLSearch
features, keeping this option enabled will make a file show up in only
the first search it matches. If disabled, it may appear multiple times,
if it matches more than one search.Disable
- Tab Completion of Nicks in Chat
- You can use the tab key to complete partial (beginnings) of
nicknames from the main chat text input field (press tab multiple times
to switch between multiple nicks). A partial nick will also match if
comes after something between brackets (e.g. "arne<tab>" would
- Enable Safe and Compressed Transfers
- When transfering data with a compatible client, DC++ will try to
use ZLIB compression with integrity checks. This uses some CPU cycles,
but can dramatically speed up transfers of uncompressed files as well
as ensure file integrity (reduce the chance of corruption to near zero).Enable if unsure.
- Accept Custom User Command From Hub
- This option lets you enable or disable DC++'s ability to retrieve
custom commands from a remote hub. Custom User Commands may show
when you click on the hub's tab, or on a user in the Transfer View,
Search Window, or User List, and can enable you to read the rules,
perform operator functions, interact with hub bots, etcetera.
- Log Filelist transfers
- Add successful file lists transfers to your upload and
download logs. Otherwise only transferred files are logged. Enabled
- Send Unknown /commands to the Hub
- Enable this to send /commands
that DC++ does not recognize to the hub as normal chat.
- Add Finished Files to Share Instantly
- If you download files directly to a shared directory, enabling
this option will add the files to your share as soon as they're
finished. Searches will return the file, and users can download it. It
will not appear in your file list until the next refresh.
- Use UPnP Control
- This option is available on Windows XP and above, with the proper
services enabled. It will auto-configure the Windows Firewall and
any UPnP (Universal Plug and Play) routers to enable DC++ to operate in
active mode without configuring an IP address or port on the Connection settings
page. A guide to setting up UPnP can be found here.
- Don't download files already in share
- This option will stop you from downloading files which already
exist in one of your shared directories. Note that this only works with
those files which have a TTH.
- Use CTRL for line history
- Press up arrow while holding down CTRL to scroll through line
history. If not enabled, up arrow will be enough.
- Open new window when using /join
- When using /join >ip<, a new window with the hub will open.
- Search for files with TTH root only as standard
- Enables "Only results with TTH root" in the search window as
standard. This option will cause search results that don't have a TTH
to not be displayed.
- Advanced resume using TTH
- Enables a more advanced form of transfer resuming than the rollback method. The
last block of the incomplete file will be checked for validity using
the leaves, retrieved from the remote client, of the TTH. If the
block fails verification, the previous block in the file will be tried,
and so on, until a good block is found, or there is no more data in the
- Toggle window when selecting an active tab
- With this option enabled, clicking on an active tab will mimic
the behavior of Windows 98+ and send the currently active window to the
background. The most recently accessed window will become the new