tor process priority in windows

Due to recent botnet activity relay operators suffer from high cpu usage. When running on single and two core cpu's tor process can slow down other tasks. In some cases it is desired to have tor process priority lowered. Windows do not have built-in ways to set priority for services. I implemented little mod for myself. It uses some torrc variable and calls SetPriorityClass API. I think it would be great if official version had the same feature.

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Username: bolvan