Free computes software for windows

Astral Computing Netcheck 1.2 is one of the most marvelous tools to discover live hosts on a network that respond to ICMP. Single executable file. It will ask you to enter the schema, and desired timeout. The responses will be dumped to a file called netcheck.log in the same folder. Very helpful for batch programming and for finding hosts on a network quickly and easily. Low bandwidth, uses only 1 byte to transmit 1 time to each host.

Requirements: Windows XP/2003 Server

WinOMeter allows you to measure your computers activity. WinOMeter is a small and simple tray utility that allows you to measure your computers activity.
It counts your keyboard / mouse presses and computes trajectory you have arrived by your mouse.
You can easily set it to run at startup if you would like to have capured all your activity.
Every day is saved into history, so you can make statistics of your activity (averaging..).
There is also export of whole history to a CSV file (comma separated values) which may be modified later in e.g MS Excel
Main features:
- It counts your keyboard / mouse presses and computes trajectory you have arrived by your mouse.
- You can easily set it to run at startup if you would like to have capured all your activity.
- Every day is saved into history, so you can make statistics of your activity (averaging..).
- There is also export of whole history to a CSV file (comma separated values) which may be modified later in e.g MS Excel.

OptimCredit 4.6 has come as a versatile program which is a combination of software mortgage and credit calculations and amortizing schedule. The credit software has unique features that let user know the true cost of their credit and optimize their mortgage payments to save money. Users start by creating a new mortgage definition. This credit definition can be saved/loaded. The software displays the amortizing and computes the true costs of the credit.

It also computes the mortgage's equivalent interest rate, which is the true cost of the mortgage, including fees and credit insurance. Then, it is possible to simulate extra payments (or reducing payments) and compute the exact gain/loss corresponding to these changes. With optim-credit, it is also possible to combine several mortgages and computes the global equivalent interest rate and true costs of the credits. Optim-credit is free to use and runs under Windows XP service pack 2.

PC Security Test is a free program for Windows that checks computer security against viruses, spyware and hackers. With a few mouse clicks, users can easily control the efficiency of their protection software (anti-virus programs, spyware scanners and firewalls).
PC Security Test simulates virus, spyware and hacking attacks and monitors the responses of your protection software. Dont worry, no real viruses are involved ! After the tests are complete, PC Securtiy computes a security index and provides tips on improving PC security.