From: Seija Kijin <doremylover123@gmail.com>

Use _beginthreadex instead of CreateThread
since we use the Windows CRT,
as Microsoft recommends _beginthreadex
over CreateThread for these situations.

Finally, check for NULL handles, not "INVALID_HANDLE,"
as _beginthreadex guarantees a valid handle in most cases

Signed-off-by: Seija Kijin <doremylover123@gmail.com>

Submitted-As: https://lore.kernel.org/git/pull.1440.v5.git.git.1675176442381.gitgitgadget@gmail.com
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