Unable to configure agent service when --windowsLogonPassword value starts with "-" or contains "^" symbol

Agent Version and Platform

2.164.6 Windows

Azure DevOps Type and Version

dev.azure.com

What’s not working?

Unable to configure agent service when --windowsLogonPassword value starts with “-” or contains “^” symbol.

Example “-”

$password = “-bMBd9oVyEY1SJRJog8j”

.\config.cmd --unattended --url $url --auth pat --token $token --pool $pool --agent $agent --runAsService --windowsLogonAccount $user --windowsLogonPassword $password --replace

[2020-01-28 02:13:37Z ERR  Agent] System.Exception: Invalid configuration provided for windowslogonpassword. Terminating unattended configuration.
   at Microsoft.VisualStudio.Services.Agent.Listener.Configuration.PromptManager.ReadValue(String argName, String description, Boolean secret, String defaultValue, Func`2 validator, Boolean unattended)
   at Microsoft.VisualStudio.Services.Agent.Listener.CommandSettings.GetArgOrPrompt(String name, String description, String defaultValue, Func`2 validator)
   at Microsoft.VisualStudio.Services.Agent.Listener.CommandSettings.GetWindowsLogonPassword(String accountName)
   at Microsoft.VisualStudio.Services.Agent.Listener.Configuration.WindowsServiceControlManager.ConfigureService(AgentSettings settings, CommandSettings command)
   at Microsoft.VisualStudio.Services.Agent.Listener.Configuration.ConfigurationManager.ConfigureAsync(CommandSettings command)
   at Microsoft.VisualStudio.Services.Agent.Listener.Agent.ExecuteCommand(CommandSettings command)
[2020-01-28 02:13:37Z ERR  Terminal] WRITE ERROR: Invalid configuration provided for windowslogonpassword. Terminating unattended configuration.

This might be happening due to a parser logic. https://github.com/microsoft/azure-pipelines-agent/blob/c6f06f9decfddadcea8d8e54eb371cfb35fcd7c8/src/Microsoft.VisualStudio.Services.Agent/CommandLineParser.cs#L73-L105

Example “^”

$password = “b^MBd9oVyEY1SJRJog8j”

.\config.cmd --unattended --url $url --auth pat --token $token --pool $pool --agent $agent --runAsService --windowsLogonAccount $user --windowsLogonPassword $password --replace

[2020-01-28 02:16:43Z ERR  Agent] System.Security.SecurityException: Invalid windows credentials entered. Try again or ctrl-c to quit
   at Microsoft.VisualStudio.Services.Agent.Listener.Configuration.WindowsServiceControlManager.ConfigureService(AgentSettings settings, CommandSettings command)
   at Microsoft.VisualStudio.Services.Agent.Listener.Configuration.ConfigurationManager.ConfigureAsync(CommandSettings command)
   at Microsoft.VisualStudio.Services.Agent.Listener.Agent.ExecuteCommand(CommandSettings command)
[2020-01-28 02:16:43Z ERR  Terminal] WRITE ERROR: Invalid windows credentials entered. Try again or ctrl-c to quit

With this one, I am not sure where it might be failing.