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Cosmo.exe failed to register during registration of LON FlowBalance software on program startup.


During startup of the Lon FlowBalance software an error is displayed indicating that the program "cosmo.exe" failed to register


Lon FlowBalance Software  version 3.0

64-bit installation of Windows Vista or Windows 7


The software installer installed the software into the C:\Program Files (x86) folder on the Windows system drive. 

When the software is started up, it needs to initialize some internal driver and data modules.  These modules are expected to be in the C:\Program Files\TAC folder however, that folder was not created during installation of the software.

The LON FlowBalance version 3 software is not supported on 64-bit versions of Windows because fully-supported Echelon (LON interface) drivers are not yet available.


Reinstall the LON FlowBalance software on a computer running Windows XP, Windows Vista (32-bit) or Windows 7 (32-bit).

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Last update:
‎2018-09-06 01:44 PM
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