Downloading RasMol


This page provides local copies of the RasMol program v2.6b2a. Although this is not the latest release, it has thus far been fine for use by our Biochemistry students.

The very latest release is 2.7.4.2. This is a collaborative effort and is still under development. Download the latest beta test version from http://openrasmol.org/

For instructions on how to use RasMol, take a look at the online RasMol Manual.

For more information about Rasmol and for links to other Rasmol resources, have a look at the Rasmol/Chime Home Page set up by Erik Martz at the University of Massachusetts.

Having problems?? Send me an email


Macintosh Computers

Download the appropriate file. Note. These are compressed files. Many web browsers will automatically unstuff the files into a RasMac directory containing the appropriate RasMac application, some sample pdb files, and documentation (you will generally find the RasMac folder on the desktop). The documentation also includes a manual for the original RasMol v2.5 plus an abbreviated reference card. Note that the online RasMol Manual has been updated for version 2.6.

If the web browser does not unstuff the files automatically, save the file, then use StuffItExpander to decompress the file. The StuffItExpander utility is available from the Curtin Public Domain server under Macintosh:Utilities:Compression Utilities:StuffItExpander4.01(full). In this directory you will find the file 'StuffItExpander 4.01 Installer'. Double-click on the Installer file and follow the instructions for installation on your Macintosh hard drive. The StuffItExpander utility is also available on the web, try Aladdin Systems for the latest version.

Move the RasMac directory onto your hard drive. You should then configure your web browser to recognise RasMac as a helper application.

PC/Windows

Download RASWIN.ZIP

This is a compressed file which unzips into a RasWin directory with the 32-bit RasWin v2.6 Beta-2a application (rw32b2a.exe) along with two help files (rasmol.hlp and raswin.hlp) needed by the application. The directory also includes a manual for the original RasMol v2.5 plus an abbreviated reference card. Note that the online RasMol Manual has been updated for version 2.6.

Use a decompression utility like PKUnzip to unzip the PC file if your web browser doesn't do so automatically. PKUnzip is available from the Curtin Public Domain Server under PC:UTILS:ARCHIVE:PKZ204G.EXE. Create a new directory (PKUNZIP) and download PKZ204G.EXE into this directory. Run PKZ204G.EXE under DOS. It will create the PKUnzip executables plus all documentation for the program. PKUnzip can also be downloaded from the web. Here is one site.

The 32-bit version of RasWin will run under Windows95 or WindowsNT as is.

Installation in Windows 95.
Right-click on Start and select Open. From the Start Menu window, double click to open the Programs window (or wherever you want RasMol to be). Now, use Windows Explorer to find the RasWin program file you downloaded (RW32B2A.EXE). Click the right mouse button on the RasWin program file, and select Create Shortcut. A new file will appear. Drag it into the Programs window (or wherever you want it). Close all windows. Now, the Start, Programs menu will have RasWin on its list. You should also configure your web browser to recognise RW32B2A.EXE as a helper application.

Installation in Windows 3.1x
Windows 3.1x can also run the 32-bit version, but you must have (i) an 80386 or better CPU, (ii) floating point hardware (this is built into 80486DX and Pentiums) and (iii) a free accessory provided by MicroSoft called Win32s installed with your Windows 3.1x. The latest upgrade is available as: Pw1118.exe via Web

Instructions for installation are found at the Microsoft site.

Once you have downloaded RasWin and installed Win32s, create a new program item for RasWin. In Windows, select File, New (Program Item), Browse, and select C:\RASWIN\RW32B2A.EXE, OK. In the Description field, put RasWin followed by the version you are installing (for example RasWin32 2.6 Beta2). In the Working Directory field, put C:\RASWIN or wherever you plan to keep your scripts and PDB (atomic coordinate) data files. You should also configure your web browser to recognise RW32B2A.EXE as a helper application.

UNIX X11

Download the file RasMol26b2.tar.gz. To unpack the file, use the command gunzip RasMol26b2.tar.gz | tar -xvf RasMol26b2.tar This should unpack the file into a directory (RasMol2) containing the RasMol2.6b2 source code, Imakefile, Makefile examples (for Unix, PC, and Mac platforms), documentation, etc. Executable files are not included. Have a look at the INSTALL file for compilation instructions. Delete the files RasMol26b2.tar.gz and RasMol26b2.tar if you wish.