its says other doucmentum software is already installed, but i deleted all folders related to documentum and trying to reinstall
i am getting this error. please i need help.
Setup.product.install, com.documentum.install.shared.common.error.DiException, err, An exception occured in: DiWAOemInitialize, beanID: oemInitialize - DiWAOemInitialize failed! - Other Documentum software is already installed. Uninstall all Documentum software then try again.; For more detailed information, see the error log: 
\data\saleh\softwares\documentum6.6\setupError.log
(Dec 14, 2011 7:04:20 PM), Setup.product.install, com.documentum.install.shared.common.error.DiException, err, com.documentum.install.shared.common.error.DiException: Other Documentum software is already installed. Uninstall all Documentum software then try again.
at com.documentum.install.oem.common.services.DiOemEnvironmentVerifier.checkForNonOemEnvironment(DiOemEnvironmentVerifier.java:77)
at com.documentum.install.oem.common.services.DiOemEnvironmentVerifier.checkValidOemEnvironment(DiOemEnvironmentVerifier.java:28)
at com.documentum.install.oem.common.beans.wizard.action.DiWAOemInitialize.inferUpdate(DiWAOemInitialize.java:105)
at com.documentum.install.oem.common.beans.wizard.action.DiWAOemInitialize.execute(DiWAOemInitialize.java:54)
at com.installshield.wizard.StandardWizardListener.execute(Unknown Source)
at com.installshield.wizard.StandardWizardListener.currentBeanChanged(Unknown Source)
at com.installshield.wizard.Wizard$RunThread.run(Unknown Source)
err: ---- BEGIN "Global Context: " output ---- (Wed Dec 14 19:04:20 GST 2011)
Wed Dec 14 19:04:20 GST 2011: [COMMON]
Wed Dec 14 19:04:20 GST 2011: UI_MODE=AWT
Wed Dec 14 19:04:20 GST 2011: IS_SUITE_INSTALLATION=TRUE
Wed Dec 14 19:04:20 GST 2011: BOF_GLOBAL_REGISTRY_DFC_PANEL_IS_ENABLED=FALSE
Wed Dec 14 19:04:20 GST 2011: ECI_SERVICES_ASK=FALSE
Wed Dec 14 19:04:20 GST 2011: PIA_OPTION_HIDE=FALSE
Wed Dec 14 19:04:20 GST 2011: SUITE_MAIN_PRODUCT=serverOEM
Wed Dec 14 19:04:20 GST 2011: DCTM_PROGRAM_DIR=D:\data\saleh\installations\documentum_installation\Program Files\Documentum
Wed Dec 14 19:04:20 GST 2011: DCTM_LOCATION=D:\data\saleh\installations\documentum_installation\Program Files\Documentum
Wed Dec 14 19:04:20 GST 2011: SETUP_FILES_FOLDER=D:\data\saleh\installations\documentum_installation\Program Files\Documentum\setup
Wed Dec 14 19:04:20 GST 2011: DCTM_USER_DIR=D:\data\saleh\installations\documentum_installation\Documentum
Wed Dec 14 19:04:20 GST 2011: WINDOWS_DIRECTORY=C:\Windows
Wed Dec 14 19:04:20 GST 2011: WINDOWS_ROOT_DIRECTORY=C:
Wed Dec 14 19:04:20 GST 2011: DEFAULT_BROWSER=iexplore
Wed Dec 14 19:04:20 GST 2011: VERSION_IEXPLORER=8.0.7600.16385
Wed Dec 14 19:04:20 GST 2011: VERSION_NAVIGATOR=
Wed Dec 14 19:04:20 GST 2011: COMPUTER_NAME=SALEH-PC
Wed Dec 14 19:04:20 GST 2011: USER_ACCOUNT=Saleh
Wed Dec 14 19:04:20 GST 2011: USER_DOMAIN=Saleh-PC
Wed Dec 14 19:04:20 GST 2011: USER_IS_ADMIN=TRUE
Wed Dec 14 19:04:20 GST 2011: OPERATING_SYSTEM=7
Wed Dec 14 19:04:20 GST 2011: SERVICE_PACK=2
Wed Dec 14 19:04:20 GST 2011: SCREEN_RES_X=1440
Wed Dec 14 19:04:20 GST 2011: SCREEN_RES_Y=900
Wed Dec 14 19:04:20 GST 2011: USER_PROGRAMS_FOLDER=
Wed Dec 14 19:04:20 GST 2011: USER_GROUP=
Wed Dec 14 19:04:20 GST 2011: TEMP_DIR=C:\Users\Saleh\AppData\Local\Temp
Wed Dec 14 19:04:20 GST 2011: SUPPRESS=TRUE
Wed Dec 14 19:04:20 GST 2011: EXTERNAL_RESOURCE_PATH=D:\data\saleh\softwares\documentum6.6
Wed Dec 14 19:04:20 GST 2011:
Wed Dec 14 19:04:20 GST 2011: [JRE_ENVIRONMENT]
Wed Dec 14 19:04:20 GST 2011: java.version=1.6.0_17
Wed Dec 14 19:04:20 GST 2011: java.vendor=Sun Microsystems Inc.
Wed Dec 14 19:04:20 GST 2011: java.vendor.url=http://java.sun.com/
Wed Dec 14 19:04:20 GST 2011: java.home=C:\Users\Saleh\AppData\Local\Temp\LRE58D9.tmp\jre
Wed Dec 14 19:04:20 GST 2011: java.vm.version=14.3-b01
Wed Dec 14 19:04:20 GST 2011: java.vm.vendor=Sun Microsystems Inc.
Wed Dec 14 19:04:20 GST 2011: java.vm.name=Java HotSpot(TM) Client VM
Wed Dec 14 19:04:20 GST 2011: java.class.path=;oemWinSuiteSetup.jar;serverWinSetup.jar;indexAgentWinSetup.jar;tcfSetup.jar;dbSetup.jar;dctmAppServerSetup.jar;serviceWrapperSetup.jar;dfcWinSetup.jar;bofworkflowSetup.jar;bofcollaborationSetup.jar;appServer.jar;dbserver.jar;serviceWrapperManager.jar;documentumSetup.jar;C:\Users\Saleh\AppData\Local\Temp\LRE978E.tmp\installConfig.jar;
Wed Dec 14 19:04:20 GST 2011: java.ext.dirs=C:\Users\Saleh\AppData\Local\Temp\LRE58D9.tmp\jre\lib\ext;C:\Windows\Sun\Java\lib\ext
Wed Dec 14 19:04:20 GST 2011: os.name=Windows XP
Wed Dec 14 19:04:20 GST 2011: os.arch=x86
Wed Dec 14 19:04:20 GST 2011: os.version=5.1
Wed Dec 14 19:04:20 GST 2011: user.name=Saleh
Wed Dec 14 19:04:20 GST 2011: user.home=C:\Users\Saleh
Wed Dec 14 19:04:20 GST 2011: user.dir=D:\data\saleh\softwares\documentum6.6
Wed Dec 14 19:04:20 GST 2011:
Wed Dec 14 19:04:20 GST 2011: [NATIVE_ENVIRONMENT]
Wed Dec 14 19:04:20 GST 2011: ALLUSERSPROFILE=C:\ProgramData
Wed Dec 14 19:04:20 GST 2011: APPDATA=C:\Users\Saleh\AppData\Roaming
Wed Dec 14 19:04:20 GST 2011: CLASSPATH=.;D:\data\saleh\installations\jre6\lib\ext\QTJava.zip
Wed Dec 14 19:04:20 GST 2011: CommonProgramFiles=C:\Program Files (x86)\Common Files
Wed Dec 14 19:04:20 GST 2011: CommonProgramFiles(x86)=C:\Program Files (x86)\Common Files
Wed Dec 14 19:04:20 GST 2011: CommonProgramW6432=C:\Program Files\Common Files
Wed Dec 14 19:04:20 GST 2011: COMPUTERNAME=SALEH-PC
Wed Dec 14 19:04:20 GST 2011: ComSpec=C:\Windows\system32\cmd.exe
Wed Dec 14 19:04:20 GST 2011: FP_NO_HOST_CHECK=NO
Wed Dec 14 19:04:20 GST 2011: HOMEDRIVE=C:
Wed Dec 14 19:04:20 GST 2011: HOMEPATH=\Users\Saleh
Wed Dec 14 19:04:20 GST 2011: JAVA_HOME=C:\Users\Saleh\AppData\Local\Temp\LRE58D9.tmp
Wed Dec 14 19:04:20 GST 2011: LOCALAPPDATA=C:\Users\Saleh\AppData\Local
Wed Dec 14 19:04:20 GST 2011: LOGONSERVER=\\SALEH-PC
Wed Dec 14 19:04:20 GST 2011: NUMBER_OF_PROCESSORS=2
Wed Dec 14 19:04:20 GST 2011: OS=Windows_NT
Wed Dec 14 19:04:20 GST 2011: Path=F:\installation\oracleDB\product\11.1.0\db_1\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;D:\data\saleh\installations\jdk6u16\bin;C:\Program Files (x86)\QuickTime\QTSystem\
Wed Dec 14 19:04:20 GST 2011: PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC
Wed Dec 14 19:04:20 GST 2011: PROCESSOR_ARCHITECTURE=x86
Wed Dec 14 19:04:20 GST 2011: PROCESSOR_ARCHITEW6432=AMD64
Wed Dec 14 19:04:20 GST 2011: PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 23 Stepping 6, GenuineIntel
Wed Dec 14 19:04:20 GST 2011: PROCESSOR_LEVEL=6
Wed Dec 14 19:04:20 GST 2011: PROCESSOR_REVISION=1706
Wed Dec 14 19:04:20 GST 2011: ProgramData=C:\ProgramData
Wed Dec 14 19:04:20 GST 2011: ProgramFiles=C:\Program Files (x86)
Wed Dec 14 19:04:20 GST 2011: ProgramFiles(x86)=C:\Program Files (x86)
Wed Dec 14 19:04:20 GST 2011: ProgramW6432=C:\Program Files
Wed Dec 14 19:04:20 GST 2011: PSModulePath=C:\Windows\system32\WindowsPowerShell\v1.0\Modules\
Wed Dec 14 19:04:20 GST 2011: PUBLIC=C:\Users\Public
Wed Dec 14 19:04:20 GST 2011: QTJAVA=D:\data\saleh\installations\jre6\lib\ext\QTJava.zip
Wed Dec 14 19:04:20 GST 2011: SystemDrive=C:
Wed Dec 14 19:04:20 GST 2011: SystemRoot=C:\Windows
Wed Dec 14 19:04:20 GST 2011: TEMP=C:\Users\Saleh\AppData\Local\Temp
Wed Dec 14 19:04:20 GST 2011: TMP=C:\Users\Saleh\AppData\Local\Temp
Wed Dec 14 19:04:20 GST 2011: USERDOMAIN=Saleh-PC
Wed Dec 14 19:04:20 GST 2011: USERNAME=Saleh
Wed Dec 14 19:04:20 GST 2011: USERPROFILE=C:\Users\Saleh
Wed Dec 14 19:04:20 GST 2011: windir=C:\Windows
Wed Dec 14 19:04:20 GST 2011: __APPCOMPAT_MANIFEST=
Wed Dec 14 19:04:20 GST 2011: __COMPAT_LAYER=VistaSetup WinXPSp2
Wed Dec 14 19:04:20 GST 2011:
Wed Dec 14 19:04:20 GST 2011: [SERVER]
Wed Dec 14 19:04:20 GST 2011: DOCUMENTUM=D:\data\saleh\installations\documentum_installation\Documentum
Wed Dec 14 19:04:20 GST 2011: CREATE_DESKTOP_ICONS=FALSE
Wed Dec 14 19:04:20 GST 2011: PRESERVE_DATA_DOCBASE_DIR=TRUE
Wed Dec 14 19:04:20 GST 2011:
Wed Dec 14 19:04:20 GST 2011: [INDEX_AGENT]
Wed Dec 14 19:04:20 GST 2011: INDEX_AGENT_TYPE=LUCENE
Wed Dec 14 19:04:20 GST 2011:
Wed Dec 14 19:04:20 GST 2011: [SERVER_UTIL]
Wed Dec 14 19:04:20 GST 2011: SERVER_CONFIGURATOR_GLOBAL_CONTEXT_INI=C:\Users\Saleh\AppData\Local\Temp\serverRecorded2302231773770488956.ini
Wed Dec 14 19:04:20 GST 2011: INDEX_AGENT_CONFIGURATOR_GLOBAL_CONTEXT_INI=C:\Users\Saleh\AppData\Local\Temp\indexAgentRecorded5745503207317462835.ini
Wed Dec 14 19:04:20 GST 2011:
Wed Dec 14 19:04:20 GST 2011: [OEM]
Wed Dec 14 19:04:20 GST 2011: TEMP_DIRECTORY=D:\data\saleh\installations\documentum_installation\Documentum\temp
Wed Dec 14 19:04:20 GST 2011:
Wed Dec 14 19:04:20 GST 2011: [FEEDBACK]
Wed Dec 14 19:04:20 GST 2011: LAST_BEAN_INVOKED=DiWAOemInitialize
Wed Dec 14 19:04:20 GST 2011: LAST_BEAN_ID_INVOKED=oemInitialize
Wed Dec 14 19:04:20 GST 2011: LAST_BEAN_STATUS=FAIL
Wed Dec 14 19:04:20 GST 2011: LAST_BEAN_MESSAGE=An exception occured in: DiWAOemInitialize, beanID: oemInitialize - DiWAOemInitialize failed! - Other Documentum software is already installed. Uninstall all Documentum software then try again.
Wed Dec 14 19:04:20 GST 2011: OBJECT_DUMP=com.documentum.install.oem.common.beans.wizard.action.DiWAOemInitialize: , com.documentum.install.shared.common.services.DiWizardAction: MESSAGE=1, QUESTION=2, WARNING=3, ERROR=4, endTime=0, estimateTime=0, EXCLUDE_DIRS=beans;test;abstractClasses, failMessage=DiWAOemInitialize failed!, failAction=1, isUninstaller=false, class$com$documentum$install$shared$common$services$DiMessageDialog=null, ajc$tjp_0=call(String com.documentum.install.shared.common.services.DiWizardAction.getClassName()), ajc$tjp_1=call(void com.documentum.install.shared.common.services.DiWizardAction.setFailMessage(String)), ajc$tjp_2=call(Class com.documentum.install.shared.common.services.DiWizardAction.class$(String)), ajc$tjp_3=call(Wizard com.documentum.install.shared.common.services.DiWizardAction.getWizard()), ajc$tjp_4=call(void com.documentum.install.shared.common.services.DiWizardAction.handleBuildException(WizardBuilderSupport, Exception)), ajc$tjp_5=call(void com.documentum.install.shared.common.services.DiWizardAction.setWaitCursor()), ajc$tjp_6=call(boolean com.documentum.install.shared.common.services.DiUtil.hasInstallFailed()), ajc$tjp_7=call(String com.documentum.install.shared.common.services.DiWizardAction.getClassName()), ajc$tjp_8=call(String com.documentum.install.shared.common.services.DiWizardAction.getBeanId()), ajc$tjp_9=call(void com.documentum.install.shared.common.services.DiUtil.setLastBeanStatus(String, String, String)), ajc$tjp_10=call(void com.documentum.install.shared.common.services.DiWizardAction.handleRuntimeException(Exception, String, int)), ajc$tjp_11=call(Wizard com.documentum.install.shared.common.services.DiWizardAction.getWizard()), ajc$tjp_12=call(Service com.documentum.install.shared.common.services.DiWizardAction.getService(String)), ajc$tjp_13=call(com.documentum.install.shared.common.error.DiException(Throwable)), ajc$tjp_14=call(Service com.documentum.install.shared.common.services.DiWizardAction.getService(String)), ajc$tjp_15=call(com.documentum.install.shared.common.error.DiException(Throwable)), ajc$tjp_16=call(String com.documentum.install.shared.common.services.DiUtil.stripPackage(String)), ajc$tjp_17=call(String com.documentum.install.shared.common.services.DiWizardAction.getUIMode()), ajc$tjp_18=call(Frame com.documentum.install.shared.common.services.DiUtil.getTopLevelFrame()), ajc$tjp_19=call(Wizard com.documentum.install.shared.common.services.DiWizardAction.getWizard()), ajc$tjp_20=call(void com.documentum.install.shared.common.services.DiUtil.setTopLevelFrame(Frame)), ajc$tjp_21=call(String com.documentum.install.shared.common.services.DiWizardAction.resolveString(String)), ajc$tjp_22=call(String com.documentum.install.shared.common.services.DiWizardAction.resolveString(String)), ajc$tjp_23=call(void com.documentum.install.shared.common.services.DiUtil.displayAWTUserMessage(String, String)), ajc$tjp_24=call(WizardServices com.documentum.install.shared.common.services.DiWizardAction.getServices()), ajc$tjp_25=call(String com.documentum.install.shared.common.services.DiWizardAction.resolveString(String)), ajc$tjp_26=call(String com.documentum.install.shared.common.services.DiWizardAction.resolveString(String)), ajc$tjp_27=call(String com.documentum.install.shared.common.services.DiWizardAction.getUIMode()), ajc$tjp_28=call(Wizard com.documentum.install.shared.common.services.DiWizardAction.getWizard()), ajc$tjp_29=call(void com.documentum.install.shared.common.services.DiUtil.setTopLevelFrame(Frame)), ajc$tjp_30=call(String com.documentum.install.shared.common.services.DiWizardAction.resolveString(String)), ajc$tjp_31=call(String com.documentum.install.shared.common.services.DiWizardAction.resolveString(String)), ajc$tjp_32=call(String com.documentum.install.shared.common.services.DiUtil.getAWTUserInput(String, String, String[], String)), ajc$tjp_33=call(WizardServices com.documentum.install.shared.common.services.DiWizardAction.getServices()), ajc$tjp_34=call(String com.documentum.install.shared.common.services.DiWizardAction.resolveString(String)), ajc$tjp_35=call(String com.documentum.install.shared.common.services.DiWizardAction.resolveString(String)), ajc$tjp_36=call(void com.documentum.install.shared.common.services.DiWizardAction.setFailAction(int)), ajc$tjp_37=call(void com.documentum.install.shared.common.services.DiWizardAction.setFailMessage(String)), ajc$tjp_38=call(void com.documentum.install.shared.common.services.DiWizardAction.handleRuntimeException(Exception)), ajc$tjp_39=call(String com.documentum.install.shared.common.services.DiWizardAction.resolveString(String)), ajc$tjp_40=call(String com.documentum.install.shared.common.services.DiWizardAction.getClassName()), ajc$tjp_41=call(String com.documentum.install.shared.common.services.DiWizardAction.getBeanId()), ajc$tjp_42=call(WizardServices com.documentum.install.shared.common.services.DiWizardAction.getServices()), ajc$tjp_43=call(String com.documentum.install.shared.common.services.DiUtil.toString(Object)), ajc$tjp_44=call(String com.documentum.install.shared.common.error.DiExceptionHandler.handleException(Exception, String, String, String, int, WizardServices, String, String, boolean)), ajc$tjp_45=call(boolean com.documentum.install.shared.common.services.DiUtil.isEmpty(String)), ajc$tjp_46=call(void com.documentum.install.shared.common.services.DiWizardAction.displayUserMessage(String, String, int)), ajc$tjp_47=call(Service com.documentum.install.shared.common.services.DiWizardAction.getService(String)), ajc$tjp_48=call(Wizard com.documentum.install.shared.common.services.DiWizardAction.getWizard()), ajc$tjp_49=call(void com.documentum.install.shared.common.services.DiWizardAction.logEvent(Object, String, Object)), ajc$tjp_50=call(String com.documentum.install.shared.common.services.DiWizardAction.getBeanId()), ajc$tjp_51=call(String com.documentum.install.shared.common.services.DiWizardAction.resolveString(String)), ajc$tjp_52=call(String com.documentum.install.shared.common.services.DiWizardAction.getBeanId()), ajc$tjp_53=call(String com.documentum.install.shared.common.services.DiWizardAction.getBeanId()), ajc$tjp_54=call(void com.documentum.install.shared.common.services.DiWizardAction.putSharedClasses(WizardBuilderSupport, File, int)), ajc$tjp_55=call(Wizard com.documentum.install.shared.common.services.DiWizardAction.getWizard()), com.installshield.wizard.WizardAction: state=null, com.installshield.wizard.WizardBean: TEMPLATE_VALUE=1, CURRENT_VALUE=2, nextId=52, beanId=oemInitialize, displayName=Di WA Oem Initialize, active=true, conditionSet=com.installshield.util.ConditionSet@16f70a4, extendedProperties={}, comments=, conditionOperator=AND, buildCategories=, parent=null, node=Di WA Oem Initialize (oemInitialize), tree=com.installshield.wizard.WizardTree@2da5a6, wizard=com.installshield.wizard.Wizard@d647d8, values={}
err: ---- END "Global Context: " output ---- (Wed Dec 14 19:04:20 GST 2011)
