If anyone has any more information they can provide on this programmer, or is willing to experiment on one they own, it would be very helpful.
As far as the software on the computer goes, all that is necessary to work with the programmer is to interface to the Silicon Labs USB driver included with the manufacturer's programming software. Product Description Package includes: 1PCS X TSOP-48-0.5-OTS048 Socket TSOP32-40-48 Programmer Adapter TSOP-48-0.
I'm not sure, but I'm assuming that all of the *.stg files are actually code for the microcontroller, and are uploaded to it through the USB interface when the selected device changes. SOP8 SOP16 SOP20 SOP28 adapter kit for TL866II GQ-4X TNM G540 TOP programmer. It's in Chinese, so it might be hard to navigate) using a disassembler for the 8051, and it appears to contain some code used to test the functionality of the microcontroller. NAND TSOP32/40/48 SOP44 SOP56 adapter for TL866CS TL866A TL866II plus programmer. On a hunch, I decided to disassemble one of the *.stg files, specifically TestExe.stg, included with the programming software (which can be downloaded from the company's website. TSOP32-40-48 Programmer Adapter TSOP-48-0.5-OTS048 Socket for TL866 Series,Usefull for TL866CS,TL866A,TL866II Programmers. The programmer: The built quality is surprisingly high. Content of the Box: programmer, USB cable, QC card and a CD-R with the software on it. It came in a cardboard box and this were the contents. It controls a CPLD and several shift registers, open collector buffers, and discrete transistors to manipulate the pins of the socket. So I went to ebay an bought one of this widespread available Genius G540 ( ( G540 programmer on ebay )) EPROM programmers. From a quick look at the board, the entire programmer is controlled by a c8051f340 microcontroller, which is connected to the USB port. I have one of these programmers, and can tell you that while the software is definitely lacking features, including ones mentioned as part of the sales pitch, I think it has a lot of potential to be one of the most useful programmers available for under $60 if the exact way it works can be determined, and if new software were written to take advantage of it.