Free perimeter software for windows

The Microsoft Business Solutions Perimeter Network Configuration Wizard will help users to install and configure Microsoft Internet Security and Acceleration (ISA) Server 2004 as your perimeter networks firewall server.
The Microsoft Perimeter Network Configuration Wizard also helps you install and configure your Microsoft Business Solutions applications, allowing them to be accessed by authenticated users outside of your perimeter network.
The wizard supports the following Microsoft Business Solutions applications:
Microsoft Dynamics Business Portal 3.0

Geometry Calculator 3 has come as a convenient and comprehensive tool with the ability to calculate the area and perimeter of a circle, triangle, rectangle/square, and a regular N-Gon (polygon). It can also calculate the surface are and volume of a sphere, cylinder, rectangular prism/cube, cone, and a pyramid. There is currently no graphical user interface, it's just a console (text interface) program.

Enhancements: May include unspecified updates, enhancements, or bug fixes.

S10 RedEyes is a sophisticated red-eye removal program that also functions as a general-purpose photo editor. It features a circular/elliptical eye selection tool - not rectangular as in other programs - and it smoothly removes redness, with pixel blending along the perimeter (anti-aliasing). Eye brightness, pupil brightness, and eye color are all adjustable. For severe cases where the flash has entirely wiped out the structure of the eye, a "replacement eye" option is available. General photo editing capabilities include rotating, resizing, cropping, adjusting brightness, and correcting tilt. A navigation toolbar makes it easy to cycle through all photos in a folder. Also includes printing capabilility with instant preview. S10 RedEyes is digitally signed, compact (262KB), easy to use, and free.

Harden-It - harden your Windows installation against numerous attacks Harden-It is a new lightweight software release from YASC .ltd and Zoller Thierry. Harden-it was created to harden your Windows installation against many attacks.
By hardening the IP stack your Network can sustain or completely twarth various sophisticated network attacks. By hardening your Local System lots of current malware, spyware, worm infection are completely blocked, proactively harden your system even against future uknown attacks.
Short Features:
- Harden your servers TCP and IP stack
- Protect your servers from Denial of Service and other network based attacks
- Enable SYN flood protection when an attack is detected
- Set the threshold values that are used to determine what constitutes an attack
Harden-It? is intended for the network/server administrator or the professional internet user. You should not use this tool if you are a novice.
Features:
- Adjusts retransmission of SYN-ACKS. The connection responses time out more quickly during a SYN flood.
- Determines how many connections the server can maintain in the half-open (SYN-RCVD) state before TCP/IP initiates SYN flooding attack protection.
- Determines how many connections the server can maintain in the half-open (SYN-RCVD) state even after a connection request has been retransmitted.
- Specifies the threshold of TCP connection requests that must be exceeded before SYN flood protection is triggered.
- Controls how many times a SYN-ACK is retransmitted before canceling the attempt when responding to a SYN request.
- Determines how many times TCP retransmits an unacknowledged data segment on an existing connection. TCP retransmits data segments until they are acknowledged or until this value expires.
- An attacker could force the MTU to a very small value and overwork the stack by forcing the server to fragment a large number of packets.
- This setting controls how Windows manages connection keep alive transmissions. Specifies how often TCP attempts to verify that an idle connection is still intact by sending a keep-alive packet.
- A denial of service (DoS) attack against Windows servers is to send it a "name release" command. This will cause it to release its NetBIOS, preventing clients from accessing the machine
- Internet Control Message Protocol (ICMP) redirects cause the stack to plumb host routes.
- Disables ICMP Router Discovery Protocol (IRDP) where an attacker may remotely add default route entries on a remote system.
- Determines whether TCP performs dead gateway detection. An attacker could force the server to switch gateways, potentially to an unintended one.
- Specifies AFD.SYS functionality to withstand large numbers of SYN_RCVD connections efficiently.
- Specifies the minimum number of free connections allowed on a listening endpoint. If the number of free connections drops below this value, a thread is queued to create additional free connections.
- Specifies the maximum total amount of both free connections plus those in the SYN_RCVD state. Set to lowest for Workstations!
- Specifies the number of free connections to create when additional connections are necessary.
- This parameter is used to prevent address sharing (SO_REUSEADDR) between processes so that if a process opens a socket, no other process can steal data from it.
- NAT is used to screen a network from incoming connections. An attacker can circumvent this screen to determine the network topology using IP source routing. Disables IP source routing.
- Processing fragmented packets can be expensive. Although it is rare for a denial of service to originate from within the perimeter network, this setting prevents the processing of fragmented packets.Prevents the IP stack from accepting fragmented packets.
- Multicast packets may be responded to by multiple hosts, resulting in responses that can flood a network. The routing service uses this parameter to control whether or not IP multicasts are forwarded. This parameter is created by the Routing and Remote Access Service.
- Your computers running Windows may be responding to Address Mask requests on the network, which could enable malicious users to discover some of your network topology information.
- By default, the DNS resolver accepts responses from the DNS servers that it did not query. This feature speeds performance but can be a security risk.
- Malicious User Can Shut Down Computer Browser Servic. An vulnerability exists in the computer browser protocol ResetBrowser frame that could allow a malicious user to shut down a computer browser on the same subnet, or shut down all of the computers browsers on the same subnet.
- Windows NT has a feature where anonymous logon users can list domain user names and enumerate share names.Users who want enhanced security have requested the ability to optionally restrict this functionality.
- A hidden share is identified by a dollar sign ($) at the end of the share name. Hidden shares are not listed when you look through the shares on a computer or use the net view command. If enabled this option will hide all the administrative shares.
- Determines how many times TCP sends an Address Request Packet for its own address when the service is installed. This is known as a gratuitous Address Request Packet.
- Determines the time that must elapse before TCP can release a closed connection and reuse its resources. This interval between closure and release is known as the TIME_WAIT state or 2MSL state.

Calendar Magic is an easy-to-use program that is entertaining, informative, educational, and of equal applicability in the home and in the office.
Calendar Magic has also been reported to run without problems on Windows NT/2000 based PCs, but the program has never been formally tested on such systems.
Main features:
- Full year and individual month Gregorian, Afghan, Armenian, Bahai, Bangla, Chinese, Coptic, Egyptian, Ethiopic, French Revolutionary, Hebrew, Hindu Lunisolar (3 variants), Hindu Solar, Indian National, Islamic Civil, Julian, Revised Julian, Parsi Fasli, Parsi Kadmi, Parsi Shenshai, Persian (2 variants), Sikh Nanakshahi and Vietnamese calendars. A user option is provided to choose between displaying/printing calendars showing each week starting on a Monday (in line with the ISO 8601 international standard), on a Sunday for North American users, or on a Saturday for Middle East users.
- Alternative Gregorian "planning calendars".
- A month-by-month, side-by-side comparison of any two of the 23 calendar systems listed above. The display remains synchronised as you change day, month and year values in either calendar system being viewed. Again, users may choose between displaying each month with weeks starting on a Saturday, Sunday or Monday.
- Date conversions among the 23 calendar systems listed above, plus conversions to Balinese Pawukon, Thai solar, old Hindu Solar, old Hindu Lunisolar and Mayan date formats. Julian day value, day of week and day of year information is also displayed. For Gregorian dates, many other facts are displayed, such as modified Julian day value, Lilian day value and Rata Die day value, and year related information including Roman numeral form, Dominical Letter(s), Dionysian Period, Julian Period, Golden Number, Solar Number, Roman Indiction and Epact. Various special days are also recognised (e.g. Halloween), as are modern Olympic years, Commonwealth Games years, European Athletics Championship years, and World Athletic Championship years.
- Lists of Western Christian festivals, Eastern Orthodox festivals, Hebrew festivals and Islamic festivals for any (Gregorian) year. In addition, Hindu festivals may be listed for any year in the range 2000 to 2043, Bahai festivals from 1845 onwards, Buddhist and Chinese festivals from 1645 to 3000, and Sikh Nanakshahi festivals from 1999 onwards.
- "Observed Days" for any year from 1990 for over 230 countries and dependencies worldwide.
- "Date Detective" command button to tabulate the weekday on which a specified Gregorian date d/m occurs for each of the years in the specified range y1 to y2.
- "In Which Months?" command button to list, for a given year, the months in which a specified day of the month falls on a specified weekday.
- The ability to create, display, update and delete reminders for events (birthdays, anniversaries, meetings etc.) for "this year", "next year" or "every year". When Calendar Magic is started up, both visual and audible warnings are given for "imminent" events (those occurring within the next seven days) for which reminders have been set. In addition, a calendar for any month, in this year or next year, may be displayed with day numbers highlighted in red for those days in the month for which reminders have been set. Left-clicking on any "red day" will cause the reminder(s) set for that day to be listed.
- Out-of-date reminders are also automatically purged by Calendar Magic and appended to a text file, purged.dat, for later reference, if needed.
- A multi-sheet "Quick Notes" facility for holding miscellaneous plain text items.
- An "alarm clock" facility for defining an alarm for a given time on a given date. A user may specify the duration of the alarm which may be repeated, after a specified "quiet" time, up to five more times.
- "This is your life" information including day-of-the-week on which you were born, number of days you have lived, your Zodiac sign, some biorhythm data, and the day-of-the-week on which your next birthday falls. Your "Chinese age" and your date of birth in many other calendar systems are also displayed.
- Continuously updated display of date, time and Julian day.
- Number of days between any two dates in the Gregorian calendar (and number of working days).
- Calculation of the date n days, weeks, months or years before or after a specified Gregorian date, where n is a whole number.
- An analysis of the Gregorian 400-year cycle, after which the Gregorian calendar repeats itself.
- Special calendars for 1582 (the year when the Gregorian calendar began) and 1752 (the year when Great Britain and its colonies changed to the Gregorian calendar), with related information.
- Dates and times of equinoxes, solstices and Moon phases for any year from 1582 to 3000.
- Solar and lunar eclipse data for any year up to 3000.
- Sunrise and sunset information for any date up to the end of 2200 for 8000 locations across the world.
- Moonrise and moonset information for any date up to the end of 2200 for these 8000 locations across the world.
- "Great circle" distances between any two of these 8000 locations across the world.
- Current local time and date in any of these 8000 locations, plus interpretation of time zone abbreviations.
- A Unit Converter for converting among 1704 units of measurement in 82 different categories including length, area, volume, mass, temperature, time, velocity, energy, power, pressure, computer storage etc.
- A Time Calculator for performing simple arithmetic on times.
- A Geometry Calculator for evaluating key attributes (area, perimeter, volume, surface area etc.) of various 2D and 3D geometric objects.
- A Factor Calculator for factorising numbers with up to 60 digits and for evaluating the HCFs and LCMs of lists of numbers.
- A stack based Scientific Calculator with a visible stack.
- An Expression Calculator for calculating the values of arithmetic expressions entered in normal (infix) form.
- A Pregnancy Calculator for calculating the due date of a pregnancy and other pregnancy related dates.
- Colour customisation of screen backgrounds, non-button text and button backgrounds.
- Support for printing any output displayed, and/or copying it to another program via the Windows clip-board using the usual Ctrl+A , Ctrl+C, Ctrl+P, Ctrl+X and Ctrl+V keyboard commands.