Consider using https://github.com/Microsoft/wil to make code cleaner

Consider using [wil](https://github.com/Microsoft/wil) to make code cleaner. The WIL library simplifies common coding patterns and can make our code a lot cleaner.

No file, test, or entry point is identified; start by reviewing the repository's C code alongside the linked Microsoft WIL library. Done requires a concrete, agreed scope for where WIL should be used and validation of the resulting cleanup.

Written by the indexing model from the issue text.