| You must be logged in as an administrator when installing CoupleFil. After installation you can start CoupleFil from the start menu. |
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| If you start CoupleFil the first time, the following window will appear. |
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| On the top there is the menu and the toolbar. Further details about the toolbar can be found here. |
| When you start CoupleFil the first time only the specification window is visible. |
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| Note: CoupleFil works in real time and calculates all filter properties new with every changing.
Thus, all opened windows respond to every changing in the filter specification window. |
