Analytics Software

i am trying to install essbase client 7.1.3 on my laptop and i am facing a problem and it says that error in installation and check the log. i did check the log and it says......

(Sep 15, 2007 12:45:14 PM), Install.product.install, com.installshield.wizard.platform.win32.Win32RegistryUpdate, err, An error occurred and product installation failed. Look at the log file C:\Hyperion\essbase\log.txt for details.
(Sep 15, 2007 12:45:14 PM), Install.product.install, com.installshield.wizard.platform.win32.Win32RegistryUpdate, err, ProductException: (error code = 601; message="Access is denied.
(5) Error on line 3")
STACK_TRACE: 13
ProductException: (error code = 601; message="Access is denied.
(5) Error on line 3")
at com.installshield.wizard.platform.win32.Win32RegistryUpdate.install(Win32RegistryUpdate.java:115)
at com.installshield.product.service.product.PureJavaProductServiceImpl.installProductAction(PureJavaProductServiceImpl.java:1916)
at com.installshield.product.service.product.PureJavaProductServiceImpl$InstallProduct.getResultForProductAction(PureJavaProductServiceImpl.java:5195)
at com.installshield.product.service.product.InstallableObjectVisitor.visitComponent(InstallableObjectVisitor.java:369)
at com.installshield.product.service.product.InstallableObjectVisitor.visitInstallableComponents(InstallableObjectVisitor.java:333)
at com.installshield.product.service.product.InstallableObjectVisitor.visitProductBeans(InstallableObjectVisitor.java:133)
at com.installshield.product.service.product.PureJavaProductServiceImpl$InstallProduct.install(PureJavaProductServiceImpl.java:4563)
at com.installshield.product.service.product.PureJavaProductServiceImpl$Installer.execute(PureJavaProductServiceImpl.java:3758)
at com.installshield.wizard.service.AsynchronousOperation.run(AsynchronousOperation.java:41)
at java.lang.Thread.run(Unknown Source)



these msgs are reapeated ..whats the problem i cannot figure it out??
any help would be really appreciated