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IFSM Download Instructions
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These instructions provide a general procedure for downloading and installing the Integrated Farm System Model (IFSM) software. Some variation in terminology and available procedures exists among various Windows Operating Systems. These generic instructions should provide a successful installation with any Windows system. Other procedures specific to your operating system and available software may work. 


1.  IFSM execution requires a Windows operating system. About 200 MB of disk storage space is required to install and store the program and associated files. A version of Windows Installer is required to complete installation. During the installation, you should receive a prompt if this software is not on your computer.


2.  Before downloading the model, we ask that you fill out the registration so that we can keep a record of users. This information is not used or distributed for any purposes other than our record of users.


3.  After registering, a file download screen should appear. If the window does not appear, this may be caused by your web browser being set to block pop-ups. There should be an Information Bar near the top of your window. It might have a statement like "To help protect your security, your browser blocked this site from downloading files to your computer. Click here for options..." Click the bar, and a window should appear with an option to allow downloading of the file. You should be able to choose to either Open the file or Save it to your computer.


4.  If the Open option is selected, an installation program using Windows Installer should open. Follow the prompts to complete the installation.


5.  If you choose to save the IFSMinstall.msi file on your computer, be sure to place the file where it can be easily found such as your download folder or desktop. After saving this installation file, execute this program using the 'Run' command from your Windows 'Start' menu or by double clicking the file. Follow the prompts to extract all program files and complete the installation.


6.  The installation extracts compressed files and copies them to permanent folders. By default, data files are placed in the folder C:\IFSM47 but another location can be selected during the installation process. The installation also creates a shortcut on your desktop labeled IFSM 4.7. This shortcut can be moved or removed if it is not wanted.


7.  If (IFSMinstall.msi) was saved on your computer, you can conserve disk space by deleting this file from your desktop or other location where it was saved.


8.  The Integrated Farm System Model is now ready for use. Click the IFSM icon on your desktop to enter the main window. The model is initially set to represent a typical dairy farm in central Pennsylvania. Other farms, ranches or feedlots of various sizes, locations and types are also provided along with weather files throughout the U.S. and few other countries. After starting with a selected farm, parameter changes can be made to develop and save new farm files. Help in using the model can be obtained at any point by pressing the F1 key, using the context sensitive help, or by selecting User Help from the Help menu.


9.  NOTE FOR INTERNATIONAL USERS: If the program fails to execute after it is installed, the problem is likely in reading numbers in the default data files. The Windows operating system must be configured to read numbers as they are used in the United States (i.e., 1,000.00). If the use of the comma and period are reversed, the program will fail. This problem can be corrected by opening the Regional and Language Options in the Windows Control Panel of your computer. After entering this dialog box, select English for the United States as the preferred regional setting or use the customize option to accept numbers in this required format.