The installation application, which installs MITCalc calculations, creates a structure of directories in a place you define, copies the respective Excel workbooks into this structure and creates a **Shortcut** in the Windows **Start Menu**. Though all calculations can be started directly through these **Shortcuts**, MITCalc calculations include an
Add-In, which enables you to start individual calculations directly from one **Integrated Environment**.

If you wish to use this Add-In, you must install it manually. Before beginning installation of the
Add-In, it is necessary to set a level of protection in MS Excel, which allows you to start VBA macro (Excel->menu Tools->Macro->Protection). Installation of the
Add-In can be started from the **Start Menu** of Windows by clicking on **MITCalc
Add-In Installation **". After starting the installation the following dialog is displayed on the screen:

If the first check box is enabled, the installation inserts a "**MITCalc**" command in the Excel "**Tools**" pop-up menu, which starts the **Integrated Environment** dialog.

When selecting the second check box during the installation the "**MITCalc**"
pull-down menu will be placed into the Excel main menu. This menu can then serve
to start directly all the calculations.

Installation can be continued using the "**Begin installation**" button. Completion of the installation is shown in a relevant dialog.

Due to the implementation of calculations in MS Excel format, the hardware requirements are similar. Our opinion is that a PC with 400+MHz, 128+MB RAM and 60+MB of free space on HD is sufficient. The minimum monitor resolution should be 800x600. The suitable configuration naturally strongly depends on the operational system, on the version of MS Excel (MS Office) and on other operated programs.

Installation of MS Excel on your computer is a condition for using MITCalc calculations. The calculations work with versions of MS Excel 97, Excel 2000, and Excel XP.

**Help.** The documentation is created in the form of interconnected html documents. It is necessary to use Microsoft Internet Explorer version 4.0 or higher to display the data correctly.

Computer: PIII - 800MHz and higher; 256 MB RAM; resolution 1024x768; NetScroll mouse.

Software: Microsoft Windows 2000/XP; Microsoft Office 2000/XP.

Individual calculations can be started several ways. Let's go through them.

Choose "**MITCalc**" in the Start menu. In the open pop-up menu you can see the structure of the folders with individual calculations.

Choose the respective calculation and click on it.

Select the "**MITCalc**" item in the Excel main menu. In the selected menu
you will then see the structure of the folders containing the calculations.

Select the corresponding calculation and double-click it.

The integrated environment can be started:

- From the Start Menu - "
**MITCalc**" command - From the Excel Tools - "
**MITCalc**" command - From the active calculation - using the button in the upper left corner of the sheet called "
**Calculation**"## Calculation name

**Start**" button.

Individual calculations can also be started in the "**Calculation retrieval**" delivered program. This may be convenient, for example, if you prepare several alternatives for a calculation with preset values or you wish to open copies of calculation workbooks saved in another directory than the installation directory.

Individual calculations are in fact normal MS Excel books. Therefore, you can process the calculations as MS Excel workbooks. You can open the calculations in the MS Excel environment or open them by double clicking on their icon in Windows Explorer, you can create a shortcut on your desktop, etc.