Ism 6.2 Software Licences From Cdac.zip May 2026

Fill out the Material Transfer Agreement (MTA). This is a digital form where you declare that the software will not be used for commercial purposes.

Run the license generation script:

cd ISM_6.2/licences ./get_hostid # Outputs a 12-character code Email this hostid to licensing@cdac.in . Within 2-3 working days, you’ll receive a license.dat file unique to your machine. If you have already downloaded a random .zip from the internet and are facing errors, here’s how to troubleshoot: Error 1: "License file corrupt or expired" Cause: The license.dat contains a hardcoded expiry date (e.g., EXPIRES=31-DEC-2020 ). Fix: Legitimate solution – request a renewal from CDAC. Illegitimate "solutions" involving system date changes will break other software. Error 2: "Cannot open /usr/local/ism_6.2/licences/license.dat" Cause: The binary is looking for an absolute path. Fix: Create a symbolic link or set the environment variable: ism 6.2 software licences from cdac.zip

Visit the official CDAC software portal (currently https://software.cdac.in or the DST e-governance page). Note: As of 2025, the exact URL may redirect to the National Supercomputing Mission (NSM) portal. Fill out the Material Transfer Agreement (MTA)

| Software | Function | License Type | | :--- | :--- | :--- | | | Wavefunction analysis, AIM, ESP | Free for academics (no license file) | | Critic2 | Bader charge analysis, topological analysis | GPL open source | | Horton | Hirshfeld partitioning, density analysis | GPL v3 | | DGrid (by Kohout) | Electron density topology | Free with citation | Within 2-3 working days, you’ll receive a license

Introduction In the world of computational material science and theoretical chemistry, few tools are as revered for specific niche applications as the ISM (Intermolecular Separation Method) software . Developed primarily for analyzing intermolecular interactions, electron densities, and molecular docking simulations, ISM has become a staple in many Indian research laboratories. The version ISM 6.2 represents a significant leap in parallel computing capabilities and user-friendly scripting.

Register using your institutional email ID ( .ac.in , .edu , .gov ). Personal emails like Gmail are rejected.