Windows Command

Copy files

robocopy "C:\SourceFolder" "Z:\DestinationFolder" /E /Z /MT:32 /R:1 /W:1

Options
/E → Copy subfolders, including empty ones.
/Z → Restartable mode (resumes if interrupted).
/MT:32 → Multi-threaded copy (32 threads; up to 128).
/R:1 → Retry 1 time on copy failure.
/W:1 → Wait 1 second between retries.
/LOG:file.txt → Write operation log to file.txt.
/MIR → Mirror source to destination (WARNING: can delete files at destination).

Notes - Use an elevated command prompt (Run as Administrator) if you encounter permission errors. - For large transfers consider increasing /MT but monitor CPU and disk I/O. - When using network drives, map them first or use UNC paths (\\server\share).

Get PID / Find running process

tasklist /fi "IMAGENAME eq AsyncTest.exe"

Tip
To get more details including the PID, use:

tasklist /v /fi "IMAGENAME eq AsyncTest.exe"

Or filter by window title or username:

tasklist /fi "WINDOWTITLE eq MyApp*" /fi "USERNAME eq DOMAIN\User"

TLS protocol

Show/Set TLS

# Show current value
[Net.ServicePointManager]::SecurityProtocol

# Force .NET to use TLS 1.2 only
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

Check Enabled Protocol

SSL Test

nartac

Check Cipher Suites

Get-TlsCipherSuite

Set Env Variable

If you had Visual Studio running while you were setting the environment variables, you have to restart Visual Studio so that the new environment variables can take effect.

CMD

setx AZURE_OPENAI_API_KEY "xxxxxxxxxxxx"

PowerShell

current user

[Environment]::SetEnvironmentVariable("AZURE_OPENAI_API_KEY", "xxxxxxxxxxxx", "User")

system-wide (needs admin rights)

[Environment]::SetEnvironmentVariable("AZURE_OPENAI_API_KEY", "xxxxxxxxxxxx", "Machine")

Temporary (current session)

$env:AZURE_OPENAI_API_KEY = "xxxxxxxxxxxx"