Parametric Command Line
Run QLMCall.exe with the changed values to drive LabelMover — no COM support required.
If the programming language or environment you use doesn't support QuickField's parametric object interface, you can use the parametric command line interface instead.
Even for programming languages that do support COM, the command line interface can sometimes be simpler to use — all you need to know is how to launch an external program (.exe file) with command line parameters from your own program.
The LabelMover install directory contains a dedicated program, QLMCall.exe. To control LabelMover, simply launch QLMCall.exe with the changed values (or extra commands) as parameters.