user/upfilesave.asp,找到以下代码删除就解除空间限制了

If Cbool(KSUser.UserLoginChecked)=True Then
         IF KS.GetFolderSize(KSUser.GetUserFolder(ksuser.username))/1024>=KS.ChkClng(KSUser.SpaceSize) Then
    Response.Write "<script>alert('上传失败，您的可用空间不够！');history.back();</script>"
    response.end
   End If
  End If