Common World inc.

© 1997-2013 Common World inc. Contact Me
Current Supported Versions


Important Notice:
As of June 2017, Common World Inc. will no longer be selling or supporting FirstClass. Starting July 2017, our service contracts will not support FirstClass Servers or any FirstClass Solution. We will be pushing new communication software and solutions for our clients and customers that best fit their needs. We have already started writing plans and roadmaps for our current RA Customers that will replace FirstClass with other software and services.


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Below information is legacy web content (pre June 2017)
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Below are OS Requirements on the Current Supported Versions
NOTE:  If the Operating System is not explicitly mentioned, it is NOT supported. Call us and lets get you upgraded ASAP!
For more infomation on Hardware Requirements visit --> Hardware_Requirements

For more information please contact us
Rob Rickard
Open Text Channel Partner, Common World inc.



FirstClass Server for Mac

FirstClass 11 & 12 Operating Systems Supported (Tested)
  • Mac OS X (64-bit Intel) Server/Desktop 10.6.2 - 10.6.5. 10.7.3, 10.8x supported for FC11 & 12.
  • Mac OS X (64-bit Intel) Server/Desktop Mavricks (OSX 10.9x) has officially been stated as supported, but Vise X based install issues may still remain with the current installers.
  • Under Mac OX X 10.8-10.9, the Server & Internet Services permissions are set incorrectly on the executables during install. This can be rectified after the install by running the `fcfixvol -x` script.
  • FirstClass Web Services (FCWS) - The supported OS X platforms still ship with Python 2.7 as well as Python 2.6 included with in the OS.  No additional steps are needed to support running FCWS on these platforms.  The current release of FCWS for OS X is built for and requires Python 2.6. It is anticipated that the next stream release will switch to using Python 2.7.
  • The FirstClass core server requires a 64-bit operating system.

  • FirstClass 10 Operating Systems Supported (Tested)
  • Mac OS X (64-bit Intel) Server/Desktop 10.6.2, 10.5.4 - 10.5.8
  • Hardware Requirements Summary
  • Operating system differences are not significant in comparison, resulting in hardware requirements that are fairly consistent across all platforms. The core server makes significantly more use of both memory and processors than FirstClass 9.x and earlier versions. The most demanding recent feature by far is the index searching, but other core features are also making more use of memory and processors.
  • The core server requirements in FirstClass are primarily determined by the size of the FCNS (FirstClass Network Store) content size.  Larger capacity sites under significant load should consider an octa-processor configuration.
  • Minimum Hardware Requirements (smaller sites with small FCNS)
  • dual-processor 64-bit (2 CPUs in any configuration, e.g. a single dual-core)
  • 4GB RAM (smaller FCNS, up to 250GB)
  • Typical Hardware Requirements (most sites)
  • quad-processor 64-bit (4 CPUs in any configuration), or more
  • 4GB RAM (FCNS not exceeding 250GB), more would be better
  • 8GB RAM (FCNS exceeding 250GB), more would be better
  • Recommended Hardware (larger sites)
  • octa-processor 64-bit (8 CPUs in any configuration), or more
  • 16GB RAM (depending on the size of the FCNS), or more
  • Single Server Hardware Requirements (Core Server and IS on One Physical Machine) is still possible with FirstClass 12. It is suggested that larger sites only run with FCSW on separate hardware. Legacy sites may still run both FCIS and FCSW but it is suggested to run them on separate hardware.
FirstClass Server for Windows

Core Server
Operating Systems Supported (Tested)
  • Windows Server 2012 x64*
  • Windows Server 2008 x64, R2 x64 , Enterprise x64
  • Windows Server 2003 x64, R2 x64
  • The FirstClass core server requires a 64-bit operating system.
  • *While the FirstClass Core Server supports the 2012 operating system, Support is not extended to the use of the new Resilient File System (ReFS).  From our testing, running the FirstClass Server with the Network Store residing on a drive formatted as a Resilient File System will result in the FCNS becoming corrupted. You should instead continue to use NTFS.
  • Hardware Requirements Summary
  • Operating system differences are not significant in comparison, resulting in hardware requirements that are fairly consistent across all platforms. The core server makes significantly more use of both memory and processors than FirstClass 9.x and earlier versions. The most demanding recent feature by far is the index searching, but other core features are also making more use of memory and processors.
  • The core server requirements in FirstClass 11/10 are primarily determined by the size of the FCNS (FirstClass Network Store) content size.  Larger capacity sites under significant load should consider an octa-processor configuration.
  • Minimum Hardware Requirements (smaller sites with small FCNS)
  • dual-processor 64-bit (2 CPUs in any configuration, e.g. a single dual-core)
  • 4GB RAM (smaller FCNS, up to 250GB)
  • Typical Hardware Requirements (most sites)
  • quad-processor 64-bit (4 CPUs in any configuration), or more
  • 4GB RAM (FCNS not exceeding 250GB), more would be better
  • 8GB RAM (FCNS exceeding 250GB), more would be better
  • Recommended Hardware (larger sites)
  • octa-processor 64-bit (8 CPUs in any configuration), or more
  • 16GB RAM (depending on the size of the FCNS), or more
Internet Services
Operating Systems Supported (Tested)
  • Windows Server 2008 x64, R2 x64 , Enterprise x64
  • Windows Server 2003 x64, R2 x64
  • Internet Services requires a 64-bit operating system.
  • Hardware Requirements Summary
  • FirstClass 11/10 Internet Services makes significantly more use of both memory and processors than 9.x and earlier versions. Enhanced caching mechanisms in FirstClass 11/10 require additional memory beyond the earlier version requirements.
  • Internet Services hardware requirements in FirstClass 11/10 are determined by a number of factors including base software requirements, resources used by the cluster, the number of IS sessions configured, and caching requirements. In general, larger sites making more extensive use of HTTP will require more RAM.
  • Minimum Hardware Requirements (smaller sites)
  • dual-processor 64-bit (2 CPUs in any configuration, e.g. a single dual-core)
  • 4GB RAM
  • Typical Hardware Requirements (most sites)
  • quad-processor 64-bit (4 CPUs in any configuration), or more
  • 8GB RAM (sites with high HTTP utilization will benefit from more - see the calculator below)
  • Recommended Hardware (larger sites using multiple IS clusters)
  • octa-processor 64-bit (8 CPUs in any configuration), or more
  • 16GB RAM (sites with very large numbers of IS sessions configured will benefit from more - see the calculator below)
  • Calculating Memory Requirements
  • To determine how much memory to provision on top of operating system requirements, please use the following guidelines:
  • Allow 128MB as a base requirement (includes basic overhead for all the protocols, config files, 1 language worth of resources)
  • Add the size of any extra resources installed (i.e. add up all the additional .rez files, icons.rez files, 'x' resources equivalents etc. from the Resource Registry folder).  Allow 1-3 MB for each extra language and/or web site custom resource set.
  • If the cluster has HTTP enabled, add 6MB for each IS session configured on the Basic Internet Setup form.  If the cluster does not have HTTP enabled, reduce this to 3MB for each IS session.
  • If the cluster has HTTP enabled, allow 1MB of HTTP cache data for each of the first 1,000 web enabled accounts on the system, then 256kB for each web enabled account after that, up to a maximum of 4x the session allocation.
  • An Example
  • For an HTTP-enabled IS cluster connected to a core server with 9,000 user accounts, configured for 300 internet sessions, with Swedish and Danish resources in addition to English, the recommended RAM requirement would be:
  • 128MB (base) + 4MB (2 extra language resource files @ 2 MB each) + 1800MB (300 internet sessions @ 6MB each) + 3048MB (cache allowance of 1MB x 1,000 + 256kB x 8,000 for the users on the system) = 4980MB = ~5GB
FirstClass Core and Internet Services on the same hardware
This specification is for small sites only. Although not definitive, the following is a guideline for what constitutes a small site
  • less than 1,000 total active accounts
  • peak concurrency under 250
  • Network Store of less than 200GB
  • Recommended Hardware
  • octa-processor 64-bit (e.g. two quad-core processors)
  • 16GB RAM or more (refer to the above IS memory calculation guideline)


Last updated Sat, Jun 3, 2017 8:24 AM    


FirstClass is a registered trademark of Open Text inc. All other trademarks are the property of their respective owners.
Currently this website is being updated and will be pushed over to the new FirstClass 12 Web Services. For the next couple months our new websites will be under development as we run real world tests of the new FirstClass API. We do apologize for anything that does not line up.