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LF Connection Keeper
Version: 5.11 (2006-04-21)
Written by Lennart Franzén in 2006
© Lennart Franzén 2006, All rights reserved

LFCK main window

A powerful utility that manages any Network Connection

Measure network traffic, monitors the Internet State, manage DHCP and
keeps the internet connection alive on any network / internet connection!

Fully automatic Login / Logout management for Sweden's leading broadband suppliers

[ Register ]

[ Downloads ]

[ Support ]

Features

Telia HomeRun
Telia Broadband
Tele 2 Bredband
ComHem Internet Cable
One / Bahnhof Internet
Tiscali Bredband

DHCP Restart, Renew and Release

Manage your DHCP with a simple click of a button.
LFCK can automatically renew your IP if the login fails multiple times

Keep Alive

To avoid getting disconnected all the time, LFCK has advanced keep alive features that works on any internet connection

Logout and release DHCP at shutdown

When LFCK shuts down it can automatically log you off and release your IP so other computers in your network can take it over

Auto Start

The program can start with windows and have you instantly connected and renew your IP upon startup

Run as Service

On later versions of Windows LFCK can be run as a service to have your internet connection enabled at all time

Network Traffic Monitor

Network activity is measured and shown in both a colored graph and the systray icon. Registered users can also display Average network traffic over a customizable time period. Network max values are customizable by the user

Systray Icon

The systray icon shows:

Network traffic; receiving and transmitting
Connection status; online, offline, unknown
Your current LAN IP
Your current WAN IP

Systray Menu

Clicking the right mouse button on the systray icon brings up a menu with quick access to key functions

Online Detection Logging (NEW!)

LFCK checks your actual online status every minute against servers on the web and can record a log file with dates and times when the connection was online and when it was offline. Perfect if you need hard evidence of a poor service by delivered your ISP

Online Detection Alert (NEW!)

LFCK checks your actual online status every minute against servers on the web and can inform you both audial and visual when you loose your internet connection and when it is back online

Registration

If you want to register LFCK there's an automated process available from the help menu and about dialog
LFCK is freeware for private use if you don't want the extra features

Auto update

You can check for program updates manually or just let LFCK silently do this regularly to keep a news-ticker up to date in the main window

Themes

Change the systray icon With different theme-DLLs. Downloadable new themes from LFDomain

Logging

A log file with important events can be continuously written, with the last entries accessible from the main window

Easy Configuration

The configuration is easy to understand with helping tool-tips for the option you position the mouse over

LFCK can automatically determine which login server type you are using if you are not sure which to choose

Security

Your login information is stored in encrypted form on your computer and is not readable to anyone

Installation and Uninstallation

Setup Wizard will guide you through the installation process. Uninstall wizard will help you remove LFCK from your computer

Unlock Additional Features

Unlock LF Connection Keeper's additional features for registered users only!
The following extra functionality will be made available when you register LFCK.

Network Traffic Monitor

Max-, Min- and Average traffic is calculated and shown individually for transmitted and received data
A scale along with a grid dividing the diagram can be shown to make it easier to grasp the actual value
Average traffic over a user definable period of time can be displayed as another graph with it's own color in the traffic diagram
Both the history period (length of the network diagram in seconds) and average period (seconds over which to calculate the average speed) is customizable by the user

Tray Icon

Average traffic over a user definable period of time can be shown in the tray icon instead of the realtime traffic
Your current WAN IP (your IP as seen from the outside) can be shown in the tray icon tool tip
Tray balloon that inform you if the connection goes on-/off-line

Online Detection

Audiable alert when your internet connection goes on-/off-line by playing selected wav-files
Tray balloon in the systray that inform you if the connection goes on-/off-line
Popup message box alerts you when your internet connection goes on-/off-line
Log file over connection status and the time it changed can be saved to disc for statistical purposes

Themes

Change the appearance of LFCK to match your personality. All the colors in LFCK can easily be changed using the the build in color picker

System Requirements

LF Connection Keeper is programmed using MicrosoftFoundationClasses in Visual C++ for 32 bit windows.

The software has been tested on

Windows 95
Windows 98, first and second edition
Windows Millennium
Windows NT4, SP2
Windows 2000, Professional and Server
Windows XP

Version Release History

v5.11 - 2006-04-21

Theme configuration now supports full color customization
Network graph split in two.
Network graph scale is now shown to the left along with a grid
Network status in graph with max / min / average for Transmitted and Received
Config tab for network traffic diagram
Config variable for network traffic diagram history time
Right-clicking on the traffic graph brings up it's configuration
Online detection can now alert via Tray Balloon in the system tray
Totally resizable main window

Tele2 login server update
Onlinestatus-log output cleaned up and a descriptive header was added upon file creation
Added a button in the registration process first step to open the registration preview page
LF Connection Keeper is now compiled with static MFC library to remove dependencies

.NET update: Code compatibility with new VisualStudio.NET
Network traffic graph average speed was not calculated according to the AverageTime, but the HistoryTime
Fixed bug in Message box rutines for online detection
Theme reader checks if load of DLL file failed
Theme path is now added to regkey along with filename
Fixed error in theme DLL array loading in config

v5.10 - 2005-06-25

Added support for One.se loginservers after bahnhofs name change from bahnhof.se to one.se
Added Online Status Log - Logs the connection status every minute or upon online status change. User defined filepath (Registered user only)
Added Online Status Alert - Performs an audial and visual alert when the connection status changes (Registered user only)
Added Online Detection tab in config
Included a new theme; KBars

Log files are now updated in realtime with unbuffered writes so you no longer have to exit LFCK to read the last entries
WANIP address redirected to LFDomain.com for faster access (Registered user only)
Tabstop order in the registration process has been corrected
Phonenumber is no longer a required field to register

Didn't trigger relogin if onlinedetection reported offline when relogintimer was running
WAN IP urlbox didn't get enabled in the config
OnlineDetection array wasn't reset when changed in config

v5.09 - 2005-03-21

Option to display average network traffic over a customizable time to main diagram
Option to display average network traffic over a customizable time in the tray icon
Option to show network graph scale (max values) in the diagram
Option to disable news ticker
Option to disable tray icon completely
Option to change the startup login delay
Option to manually set login server type (connection type)
Actual IsOnline check implemented. checks against reliable servers
Option to have IsOnline check performed every minute
Gets both the actual WAN IP (Internet address) and LAN IP (Local Network address)
Clicking the News Ticker displayes the message in a messagebox

Simpler config. No more activation of modules
Updated ComHem CON_STR_SESSION_ACTIVE
Add error values to the registration process messageboxes
Crucial registration variables are now trimmed from whitespaces before registration verifies the licensekey
Cancel button disabled when final registration check is performed
Added version number to main window caption

If LFCK started hidden and without trayicon, you couldn't open the LFCK window through another instance
"Next" button in registration wasn't enabled if the name entered was shorter than 3 characters

v5.08 - 2005-01-15

Merged Telia and ComHem again due to incomplete loginserver information

v5.07 - 2005-01-15

Always on Top (Registered user only)
Resizable main window: Full / Compact mode
Minimize main window to taskbar
Connection time online

Network activity graph footer suggested kilobit/s instead of kilobyte/s
Telia and ComHem now have different loginservers
Telia changed the behavior of their loginservers, causing autodetection to give false hits

v5.06 - 2004-05-11

The beta expiration check was not entirely disabled from the beta test period, it is now completely disabled

v5.05 - 2004-05-09

Added support for Tele 2
Added support for ComHem IC8000
Added a stop button for the relogin timer
Added email-verify field in registration dialog
HTTPS / SSL, Secure HTTP now handles expired certificates on the loginserver

Updated the registration process and texts
Removed expiration date (2004-12-31)

NIC Autodetect log-loop when an interface was not active removed
Fixed error handling to always report an error when something goes wrong at login

v5.02 - 2004-01-21

The license key verification now allows keys for all 5.x versions

v5.01 - 2004-01-11

Configuration option to enable/disable log file (was on by default before)

LFCK would not start as a service if an earlier version had another binary path and was not correctly uninstalled

v5.0 - 2004-01-08

This is the first release of the totally rewritten LFCK with plenty of great new features!

Contact

Feel free to contact me at support@lfdomain.com if you have any questions or suggestions regarding LF Connection Keeper

Please respect that I do not leave any support regarding your internet connection or LAN.
Your ISP's support beares that responsibility.

Join our mailing list to receive information about program updates in your email

Price List

LF Connection Keeper is shareware for commercial and educational use. It's freeware for private non-commercial use only.

If you're running a business from your home you'll need a commercial license.

In order to run LF Connection Keeper on a server you'll need one server license per server and additional client licenses for every client computer that advantage of the servers Internet connection.

To buy licenses or if you have any order related questions, contact me at order@lfdomain.com.

License Type	Server	Client
Commercial	400:-	200:-
Educational	300:-	150:-
Private (optional)	100:-	100:-
Prices are in Swedish Krona