Is Wubi reliable under Windows 7 Service Pack 1

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http://askubuntu.com – I am trying to get information in order to eliminate possible sources for a problem I am having, as described in another question. Can anybody confirm that Ubuntu (either ISO install or WUBI) works reliably as a dual boot on a system running Windows 7 Service Pack 1. I have another system running Win 7 (not SP1) that works great, but Windows seems to be corrupting the Ubuntu file system, and I would like to rule out the SP 1 as being the problem. Thanks guys! (HowTos)