acs.exe has stopped working

[dochobbs]

This is driving me crazy. Do I need this program? The Atheros Configuration Service. It 'stops working' every time after my computer sleeps for the first time. I cannot find which program installed it, I can't find if I can remove it safely or not, and I honestly don't know what it does. thoughts?

ME: vista enterprise, x60 tablet, 802.11a/b/g/n

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