The application is possible to launch by using either MS Internet Explorer 5.5 and higher or Netscape Comminicator 4.7 and higher. Before this, Adobe Acrobat reader has to be installed on your computer.
All these programs are available as freeware.
After inserting the CD to the drive, the introduction page opens where you can find blue underlined references:

Project information - Project "The Digital Map Archive of the Czech Geological Survey (CGS)
Contents CD - a description of selected map sheets
User Manual - how to work with the application
Map grid ZM and Map grid G-K - application entry
Sheets of administrative units - a list of map sheets in each administrative unit
Map coverage - the area of the CR covered by map sheets - the oveview of the covered area - map sheets at the scale of 1 : 25 000. The map sheets are available in two different coordinate systems ("ZM" and "G-K")

Individual pages are accessible by clicking on the blue underlined references.

Clicking on the reference "Map grid ZM", a page including the map grid in the scale of 1 : 25 000 in the S-JTSK coordinate systems with Krovak's projection will open. Maps with different signatures are distinguished by colour while map sheets with legends are marked with a full circle.
Cartographic outputs of printed maps might include such supplements as : geological map, legend, stratigraphic column, geological section, geological unit summary, geological mapping summary, map grid and geophysical maps (magnetic, radioactive and gravimetric anomalies).

Each map is divided into four quadrants (A, B, C, D), To open these quadrants either click on them or select them from the upper navigation panel . Above the map grid ZM scheme users are to choose between displaying a map or its text legend. If explanatory notes are selected by specifying a map on the grid scheme, a new window displaying the desired map text legend will open.
If a map is selected by specifying a map on the grid scheme, a new window displaying the desired geological map will open.

Clicking on the reference "Map grid G-K" a page including the map grid at the scale of 1 : 25 000 in the S42 coordinate systems with Gauss-Krüger's projection will open. While moving with a cursor along an individual map sheet, a map's number and map's title are displayed.

Complete map overview - contains more different maps (maps differ by authors, edition year and so on) referenced to a selected map unit from the map grid scheme. Each map has its heading where you can find such infromation as the sheet's editor, edition year (if it is known), and a map type. Manuscriptive maps additionally include a list of manuscriptive attachments such as legend, geological section and stratigraphic column, if that information is available. There is a report list under a map.

To select these geological maps use the upper navigation panel or just click on individual map parts included in an entire map overview. The navigation panel contains tools for getting to the first page - "Home", getting back to the pages "Map grid ZM", "Map grid G-K", or "Map information". The map information table contains a complete list of geological maps (covered, uncovered) which are available in the digital Archive of the ČGS. If the CD icon appears in the first column, the document is a part of this CD. Clicking on the icon, a document will display, while clicking on a document's title, detailed information will display.

Explanatory notes
Exists in two forms - divided into individual map sheets or entire, including all map sheets. From the navigation panel users can choose between "Title" or "Contents". Clicking on Title provides only basic information such as authors, edition year and explanatory notes. Clicking on Contents explanatory notes are displayed.
If the individual map sheet explanatory notes are chosen to display their contents click on the icon "Show/Hide Navigation panel", placed in a map's heading.
If the entire explanatory notes are chosen their contents are displayed in the right part of a window. In the left side of a window thumbnails of individual sheets are displayed. To leaf through use the indicators placed in the upper left side of a window. Pages are also possible to open by clicking on its thumbnails. In the left part of a window users can switch between displaying thumbnails or text legends.