请问wpdshserviceobj.dll是个什么程序？做什么用的？

logfile of hijackth** v1.99.1scan s**ed at 15:00:58, on 2006-6-10platform: windows xp sp2 (winnt 5.01.2600)msie: internet explorer v6.00 sp2 (6.00.2900.2180)running processes:c:\windows\system32\smss.exec:\windows\system32\winlogon.exec:\windows\system32\services.exec:\windows\system32\lsass.exec:\windows\system32\svchost.exed:\program files\r**ing\r**\ccenter.exec:\windows\system32\svchost.exed:\program files\ahead\incd\incdsrv.exed:\program files\r**ing\r**\r**mond.exed:\program files\r**ing\rfw\rfwsrv.exec:\windows\system32\spoolsv.exed:\program files\r**ing\r**\r**stub.exec:\windows\system32\nvsvc32.exec:\windows\explorer.exed:\program files\r**ing\rfw\rfwmain.exec:\program files\analog devices\soundmax\smagent.exec:\program files\common files\ulead systems\dvd\ulcdrsvr.exec:\program files\analog devices\soundmax\smax4pnp.exec:\program files\analog devices\soundmax\smax4.exec:\windows\system32\rundll32.exed:\program files\r**ing\r**\r**task.exed:\program files\r**ing\r**\r**mon.exed:\program files\sandai technologies inc\thundermini\thundermini.exec:\windows\system32\ctfmon.exed:\program files\shvip\hall\sh_hall.exed:\program files\r**ing\r**\r**.exec:\program files\internet explorer\iexplore.exed:\temp\155847200541134207\hijackth**.exeo2 - bho: thunderiehelper class - {0005a87d-d626-4b3a-84f9-1d9571695f55} - c:\windows\system32\xunleibho_v4.dllo2 - bho: acroiehlprobj class - {06849e9f-c8d7-4d59-b87d-784b7d6be0b3} - d:\program files\adobe\acrobat 7.0\activex\acroiehelper.dllo4 - hklm\..\run: [imjpmig8.1] "c:\windows\ime\imjp8_1\imjpmig.exe" /spoil /remadvdef /migration32o4 - hklm\..\run: [phime2002async] c:\windows\system32\ime\tintlgnt\tintsetp.exe /synco4 - hklm\..\run: [phime2002a] c:\windows\system32\ime\tintlgnt\tintsetp.exe /imenameo4 - hklm\..\run: [soundmaxpnp] c:\program files\analog devices\soundmax\smax4pnp.exeo4 - hklm\..\run: [soundmax] "c:\program files\analog devices\soundmax\smax4.exe" /trayo4 - hklm\..\run: [nvcpldaemon] rundll32.exe c:\windows\system32\nvcpl.dll,nvstartupo4 - hklm\..\run: [nwiz] nwiz.exe /installo4 - hklm\..\run: [nvmediacenter] rundll32.exe c:\windows\system32\nvmctray.dll,nvtaskbarinito4 - hklm\..\run: [r**task] "d:\program files\r**ing\r**\r**task.exe" -systemo4 - hklm\..\run: [rfwmain] "d:\program files\r**ing\rfw\rfwmain.exe" -startupo4 - hklm\..\run: [imscmig] c:\progra~1\common~1\micros~1\ime\imsc40a\imscmig.exe /preloado4 - hklm\..\run: [thunder_mini] d:\program files\sandai technologies inc\thundermini\thundermini.exeo4 - hklm\..\run: [stormcodec_helper] "d:\program files\ringz studio\storm codec\stormset.exe" /s /optio4 - hklm\..\run: [nerofiltercheck] c:\windows\system32\nerocheck.exeo4 - hkcu\..\run: [ctfmon.exe] c:\windows\system32\ctfmon.exeo8 - extra context menu item: &使用迷你** - d:\program files\sandai technologies inc\thundermini\geturl.htmo8 - extra context menu item: 上传到qq网络硬盘 - d:\program files\tencent\qq\addtonetd**k.htmo8 - extra context menu item: 导出到 microsoft office excel(&x) - res://d:\progra~1\micros~1\office11\excel.exe/3000o8 - extra context menu item: 添加到qq自定义面板 - d:\program files\tencent\qq\addpanel.htmo8 - extra context menu item: 添加到qq表情 - d:\program files\tencent\qq\addemotion.htmo8 - extra context menu item: 用qq彩信发送该图片 - d:\program files\tencent\qq\sendmms.htmo9 - extra button: 信息检索 - {92780b25-18cc-41c8-b9be-3c9c571a8263} - d:\progra~1\micros~1\office11\refiebar.dllo16 - dpf: {8d9e0b29-563c-4226-86c1-5ff2ae77e1d2} (axsubmitcontrol class) - o17 - hklm\system\ccs\services\tcpip\..\{744a0ddc-8d33-4d85-8e0b-5c824399fa69}: nameserver = 192.168.0.1o21 - ssodl: wpdshserviceobj - {aaa288ba-9a4c-45b0-95d7-94d524869db5} - c:\windows\system32\wpdshserviceobj.dllo23 - service: incd helper (incdsrv) - nero ag - d:\program files\ahead\incd\incdsrv.exeo23 - service: nvidia d**play driver service (nvsvc) - nvidia corporation - c:\windows\system32\nvsvc32.exeo23 - service: r**ing proxy service (rfwproxysrv) - beijing r**ing technology co., ltd. - d:\program files\r**ing\rfw\rfwproxy.exeo23 - service: r**ing personal firewall service (rfwservice) - beijing r**ing technology co., ltd. - d:\program files\r**ing\rfw\rfwsrv.exeo23 - service: r**ing process communication center (rsccenter) - beijing r**ing technology co., ltd. - d:\program files\r**ing\r**\ccenter.exeo23 - service: rsr**mon service (rsr**mon) - beijing r**ing technology co., ltd. - d:\program files\r**ing\r**\r**mond.exeo23 - service: soundmax agent service (soundmax agent service (default)) - analog devices, inc. - c:\program files\analog devices\soundmax\smagent.exeo23 - service: ulead burning helper (uleadburninghelper) - ulead systems, inc. - c:\program files\common files\ulead systems\dvd\ulcdrsvr.exe 20210311