Installation V5R20 DSLS

Version DSLS, mandatory from 1 March 2014

Table of content


The installation of CATIA V5R20 on Windows 7 SP1 x64bits requires the following

  1. Windows 7 x64 bits version Professional, Enterprise, Ultimate or Windows 10 64-bit Pro, Education, Business
    • Swiss-French OR
    • Swiss-German OR
    • US

    Windows Home Editions does not work!

  2. For Students, a network access by native VPN L2TP/IPSec on a yellow network socket !!! important to use native VPN L2TP/IPSec !!!
  3. A minimum of free disk space of at least 6 GB
  4. Preferably a Video Graphic Card without shared memory
    • ATI Radeon cards are not supported by CATIA.

Which version of the windows operating system am I running ?
Find out 32 or 64 bits ?
Why Windows 7 SP1 to run Catia ?
Why Windows 7 Certified Computer ?


First of all, you must log in with the local COMPUTER\Administrator account.
Thank you for checking your configuration here

In case of an update, make sure that they are installed and that the computer has restarted.

You must uninstall your old versions of CATIA from your computer before proceeding with the new installation!

The automatic installation has been customized to install CATIA on the root disk C.
You must verify that you have at least 3GB of free disk space on drive C.
We strongly recommend that you are connected to the wired network (yellow network sockets, cables and VPN for students)

Mounting the network share as disk « I »

  1. Double click on Computer to open explorer
  2. Click on Tools and choose Map network drive. The following window opens to connect a network path as a local drive.

Below are the steps to follow:

  1. Drive → Choose the local drive to mount the network share → I:
  2. Folder → the UNC of the server → \\\app
  3. uncheck the option Reconnect at Logon
  4. Click on finish and authenticate in the next window. For students and personnel:
    INTRANET\username (with password)
  5. Click on OK and then on finish to complete the process

Mounting the second network share as disk « R »

Proceed the same way as for disk « I » but with the following parameters:

  1. Drive → Choose the local drive to mount the network share → R:
  2. Folder → the UNC of the server → \\\CATIA
  3. Leave the option Reconnect at Logon checked (default)
  4. Click on finish and authenticate in the next window
  5. Click on OK and then on finish to complete the process

After these steps, you should have the two disks mounted on the machine as follows:

Find the installation file on drive « I »

Open disk I: and follow the path I:\cad\ibm-dassault\

Installation of CATIA

Note that you should have both drives I: and R: mounted on your PC to properly install CATIA
Open the folder R20-64bit and double click on “Install_CATIA_R20_SP7_64bits_DSLS_verbose” following each prompts and instructions of the installation wizard carefully.
We recommend that you use explorer to find the path of the installation files

You can also start the installation directly from the search programs and files prompt (Click on Start –> search programs and files) and enter the following
When the installation is completed, do not forget to reboot your PC.

In detail:

With the installation process you must obtain:

Start of the installation

End of the installation


Note that the disk R: should always be mounted when you are using CATIA.
Students and mobile users should have the VPN connected.
The personnel is authorized to use CATIA in their laboratory.

Note: Currently only the link on CATIA works

The following elements are not accessible:

  • Documentation;
  • Tutorials;
  • TracePart;
  • SimDesigner.


Installation and request for access to the network shares: Call Laurent Kling at 33511

Working with CATIA: Vacant position