Is it possible to use OpenCL in a Windows's service without being logged?
Can you check APP SDK Sample OpenCLService, which attempts to do the same. Note that it requires admin previleges to add/start/kill/remove a windows service. I think the sample should work just fine with firepro cards too.
Yes, using OpenCL as a service on Windows is officially supported.
By any Radeon or do I need a FirePro for that?
OpenCL as a service is supported on just about any OCL compliant GPU.
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