There are a number of barcode-enabled PalmOS handheld devices on the market, mostly from Symbol Technologies. These scanners have dozens and dozens of built-in features: which types of barcodes are scanned (and which aren't), whether or not check digits are scanned, how many seconds the scanner tries before giving up, whether the scan beam is wide or narrow, whether an "aiming beam" is activated before the actual scanning beam, and so on. Unfortunately, none of these parameters are accessible to the end-user of the devices. Programmers can access all of them, and may chose in individual programs to allow end-users to control one or more of these parameters, or may simply "hardcode" some particular set of parameters into the software.
ScanConfig changes this situation. ScanConfig is a new "Preference" (like the preferences which allow you to set formats, date and time, etc. on the Palm) which allows the end-user access to ALL of the features of the scanner, so that the scanner can be configured EXACTLY as the particular application (and the user) require (as a point of reference, the standard Symbol "Diag" program allows you access to a FEW of these parameters, and doesn't save your settings at all, so it really has little or no value other than for quick tests). Of course you can also activate the scanner from within ScanConfig to test the settings you select.