With eLicense you have two concurrent activations available. So if you only used one activation on the previous computer, you had another available to use on this new computer. If both license keys had already been in use/activated, then you would have gotten an 'error 11' telling you that no more activations are available to this license key.
If you don't intend to play CMSF on the old computer then it would be a good idea to UNLICENSE CMSF on the old computer. There should be a shortcut to do this within the CMSF group within the Start/Windows menu (usually under a 'Licensing' sub-folder). If you have any modules, then you will want to unlicense those too. This makes the activation available for future use, otherwise it can get 'lost' if Windows is reinstalled or upgraded or hardware changes are made to this computer (or it is simply disposed of). Uninstalling is not necessary, but UNLICENSING is definitely something you want to keep track of so you can preserve your activations.
How do you in license the game on a pc? If I simply reset my Hard Disk to factory conditions would it work?
Licensing - Unlicensing
in Combat Mission: Shock Force Tech Support
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How do you in license the game on a pc? If I simply reset my Hard Disk to factory conditions would it work?