The installation instructions installing @vscode/windows-registry, but in usage sample it loads vscode-windows-registry

Also sample instructions is missing closing parenthesis.

It seems that the limit is hard-coded to 512. I have a registry value with more than 512 characters.

For example, the following code fragment would fail if the value is longer then the currently supported limit:

const value = vsWinReg.GetStringRegKey('HKEY_LOCAL_MACHINE', 'SOFTWARE\\Microsoft\\Windows\\CurrentVersion', 'ProgramFilesPath');
assert.notStrictEqual(value, '');

There are important files that Microsoft projects should all have that are not present in this repository. A pull request has been opened to add the missing file(s). When the pr is merged this issue will be closed automatically.

Microsoft teams can learn more about this effort and share feedback within the open source guidance available internally.

The node-ffi module provides a managed wrapper around native DLLs.
All you need to do is to define types of functions, and then you don't have to deal with errors in calculating string sizes for malloc and what not.
All of that is taken care for you by node-ffi, a more battle-tested library.

There is also the non-maintained but already existing registry module windows-registry that does exactly this.

Out of the uncompressed 11.6 MB, just about 700 KB are useful to the users of this package: