WinWedge is described as 'easily collects data from balances, gages, meters, sensors, micrometers, barcode scanners, GPS, PLCs, analyzers and other measuring devices and laboratory instruments'. There are three alternatives to WinWedge for Windows. The best alternative is Bill Redirect. It's not free, so if you're looking for a free alternative, you could try 232key.
Communication with RS232 USB Scale, balance, barcode scanners, Proximity reader, RFID or any other devices to communicate with your Windows applications, Excel, Access, LIMS, MMIs, Medical Systems, web page... keyboard wedge or direct.
Bill Redirect vs WinWedge opinions
pros, cons and recent comments
This software can do more things than WinWedge and the price is only 35$ !