How to check if PowerShell is installed or not using C# [duplicate]

Question

I want to write a C# method like

public bool PowershellExists() { // Returns true if PowerShell exists on the machine, else false. }

blogs.msdn.com/b/powershell/archive/2009/06/25/… + Registry.GetValue — Mitch
– Mitch, Commented Apr 30, 2014 at 4:04
Checking the registry is a C# method. StackOverflow is not a tool for turning documentation into code. If you don't understand registry or how to access it, you should research that. — Mitch
– Mitch, Commented Apr 30, 2014 at 4:06

Peter Mortensen · Accepted Answer · 2015-06-10 21:47:32Z

9

Using the MSDN blog post Detection logic for PowerShell installation, I have written the method like:

public bool PowershellExists() { string regval = Microsoft.Win32.Registry.GetValue(@"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PowerShell\1", "Install", null).ToString(); if (regval.Equals("1")) return true; else return false; }

edited Jun 10, 2015 at 21:47

Peter Mortensen

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answered Apr 30, 2014 at 4:04

Mohammad Nadeem

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2 Comments

N.K Over a year ago

can it also tell the Version ? or can we modify it to somehow get the Version Info ?

Matthieu Over a year ago

@N.K if you follow the link there is another key that let you know the version : HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PowerShell\1\PowerShellEngine - in more recent version, you can look in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PowerShell\3\PowerShellEngine

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