This is a simple extension for supporting the great HQ9+ programming language and its syntax. All characters other than H, Q, 9 and + are treated as comments.
If you're in a hurry, you can compile your new and blazingly fast with my HQ9+ Compiler
The way to install it is by manually packaging the extension (because of Microsoft account system. I hate it.)
vsce package
And then you can use CTRL + P and write "Install from VSIX", select the .vsix file and enjoy!