Using PowerShell in vb.net code to unblock files ends with error 'The system cannot find the file specified'

Question

I'm using the following code:

Dim start_info As New ProcessStartInfo("gci 'C:\Program Files\MyFolder\MyApp\' | Unblock-File") With {.UseShellExecute = False, .CreateNoWindow = True, .WindowStyle = ProcessWindowStyle.Hidden}
Dim pro As New Process With {.StartInfo = start_info}
pro.Start()
pro.WaitForExit()
MessageBox.Show("Unblock Files Exit Code: " & pro.ExitCode, "Exit " & "Code", MessageBoxButtons.OK, MessageBoxIcon.Information)

If I type the command (gci 'C:\Program Files\MyFolder\MyApp' | Unblock-File) in Win PowerShell all works well, but if I run the code I get "System.ComponentModel.Win32Exception: 'The system cannot find the file specified'" error.

Could anybody please help? Thank you.

You need to invoke PowerShell, for example as shown in Powershell script works in Powershell, but not in VB.Net. — Andrew Morton
– Andrew Morton, Commented Mar 13, 2022 at 20:43

F Home · Accepted Answer · 2022-03-13 22:59:09Z

0

Sorted by invoking 64 bit PowerShell

p.StartInfo.FileName = "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"

answered Mar 13, 2022 at 22:59

F Home

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