>ASSERT is a very powerfull debugging tool that has been introduced in VFP 5. It is only executed when you run a program in the development environment, the runtime library of VFP skips this command.

This is important for new users of ASSERT to understand. A common mistake is to put code in an ASSERT that actually needs to be executed under all circumstances.

>ASSERT is a debugging tool, no error handling tool. It supports you during development, but you still have to write an error handler to deal with errors that happen at runtime.

That's my problem with ASSERT.