Simple console app that can be used to test usecase when file access blocked by other process.
mkdir build
cd build
cmake -G "Visual Studio 15 2017 Win64" ../
cmake --build . --target ALL_BUILD --config Release -- /p:CharacterSet=Unicode
This app block itself.
When run without params it just runs and that block file from being rewriten or deleted.
When run with first param -l it will try to get exclusive access to itself with LockFileEx so no other app can even read that file.