Hi, While installing the Pega 8.4 Personal Edition , I recieve bekow error .

Can any one  please let  me know how to resolve it.

I have attached logs with it.

My System Have : 4gb RAM , Windows 7 ultimate

Logs:

BUILD FAILED E:\PegaSoftware\pegaGuiInstallerTemp\build.xml:250: Execute failed: java.io.IOException: Cannot run program "cscript" (in directory "E:\PegaSoftware\pegaGuiInstallerTemp"): CreateProcess error=2, The system cannot find the file specified     at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)     at java.lang.Runtime.exec(Runtime.java:620)     at org.apache.tools.ant.taskdefs.launcher.Java13CommandLauncher.exec(Java13CommandLauncher.java:58)     at org.apache.tools.ant.taskdefs.Execute.launch(Execute.java:428)     at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:442)     at org.apache.tools.ant.taskdefs.ExecTask.runExecute(ExecTask.java:628)     at org.apache.tools.ant.taskdefs.ExecTask.runExec(ExecTask.java:669)     at org.apache.tools.ant.taskdefs.ExecTask.execute(ExecTask.java:495)     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)     at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)     at java.lang.reflect.Method.invoke(Method.java:498)     at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)     at org.apache.tools.ant.Task.perform(Task.java:348)     at org.apache.tools.ant.Target.execute(Target.java:435)     at org.apache.tools.ant.Target.performTasks(Target.java:456)     at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1393)     at org.apache.tools.ant.Project.executeTarget(Project.java:1364)     at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)     at org.apache.tools.ant.Project.executeTargets(Project.java:1248)     at org.tp23.antinstaller.antmod.Main.runBuild(Main.java:710)     at org.tp23.antinstaller.antmod.Main.startAnt(Main.java:218)     at org.tp23.antinstaller.antmod.Launcher.run(Launcher.java:216)     at org.tp23.antinstaller.runtime.exe.AntLauncherFilter.exec(AntLauncherFilter.java:79)     at org.tp23.antinstaller.runtime.ExecInstall.exec(ExecInstall.java:88)     at org.tp23.antinstaller.selfextract.SelfExtractor.main(SelfExtractor.java:398) Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified     at java.lang.ProcessImpl.create(Native Method)     at java.lang.ProcessImpl.<init>(ProcessImpl.java:386)     at java.lang.ProcessImpl.start(ProcessImpl.java:137)     at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)     ... 25 more

Total time: 20 minutes 52 seconds org.tp23.antinstaller.InstallException: Use logs to find the cause, then correct and run again      at org.tp23.antinstaller.runtime.exe.AntLauncherFilter.exec(AntLauncherFilter.java:91)     at org.tp23.antinstaller.runtime.ExecInstall.exec(ExecInstall.java:88)     at org.tp23.antinstaller.selfextract.SelfExtractor.main(SelfExtractor.java:398) Caused by: org.tp23.antinstaller.InstallException: Use logs to find the cause, then correct and run again      at org.tp23.antinstaller.runtime.exe.AntLauncherFilter.exec(AntLauncherFilter.java:81)     ... 2 more --- Nested Exception --- org.tp23.antinstaller.InstallException: Use logs to find the cause, then correct and run again      at org.tp23.antinstaller.runtime.exe.AntLauncherFilter.exec(AntLauncherFilter.java:81)     at org.tp23.antinstaller.runtime.ExecInstall.exec(ExecInstall.java:88)     at org.tp23.antinstaller.selfextract.SelfExtractor.main(SelfExtractor.java:398)

***Edited by Moderator Marissa to update Platform Capability tags****