How do I invoke a Java process from Windows Powershell?

I am having trouble running a Java program with Windows Powershell 2.0. Any help on this would be greatly appreciated. I want the string "Hello World!" to print to the main Powershell console window. Instead, its getting printed to a separate process window that opens then suddenly closes. I don't know exactly how to tell the powershell to redirect the stdout of the spawned java process to the current powershell console. Basically, i want behavior just like what I get when running java under a DOS shell. My test class is: ``` class HelloWorldApp { public static void main(String[] args) { System.out.println("Hello World!"); //Display the string. } } ``` My PowerShell 2.0 code is this: ``` set-item -path Env:CLASSPATH -value C:\Test "CLASSPATH = $Env:CLASSPATH" [Diagnostics.Process]::Start('java.exe','-classpath $Env:CLASSPATH C:\ Test\HelloWorldApp') ``` Alternatively, I tried to run it like so, as I would with a regular DOS shell, with the hope that the output shows in the same console : ``` java.exe -classpath $Env:CLASSPATH C:\Test\HelloWorldApp ``` It causes an error. I get this error: ``` PS >C:\Test\Test.ps1 CLASSPATH = C:\Test java.exe : java.lang.NoClassDefFoundError: C:\Test\HelloWorldApp At C:\Test\Site.ps1:3 char:5 + java <<<< -classpath $Env:CLASSPATH C:\Test\HelloWorldApp + CategoryInfo : NotSpecified: (java.lang.NoCla...e\HelloWorldApp: String) [], RemoteException + FullyQualifiedErrorId : NativeCommandError Exception in thread "main" ``` As far as I can tell, my args are correct because here is what the PCEX ( http://pscx.codeplex.com ) echoargs cmdlet tells me: ``` PS >echoargs java.exe -classpath $Env:CLASSPATH C:\Test\HelloWorldApp Arg 0 is <java.exe> Arg 1 is <-classpath> Arg 2 is <C:\Test> Arg 3 is <C:\Test\HelloWorldApp> ``` Im convinced there is a way to get this to work because this code works: ``` ## Test.ps1 cd C:\PSJustice java.exe -classpath . HelloWorldApp ``` Also, this works: ``` cd C:\ java.exe -classpath C:\Test HelloWorldApp ```