Adlib home page > Support > Frequently Asked Questions

What's the difference between version numbers of Adlib applications and software?

Since long there's a distinction in Adlib between 'applications' and (core) 'software' (the latter also denoted as 'executables'). In short it comes down to this: the software concerns programs on which applications run; the software may be compared to the engine of a car, the application to the rest of the car, and the same engine can be used in different cars. De most important component of the software is the program adlwin.exe.

The software is the same for all Adlib users, regardless of whether you have a library, museum, archive or other application. The applications specified in, amongst others, the adlib.pbk file and the .fmt files (screens) on the other hand, can differ from customer to customer.

The software has version numbers since the early eighties. De current version of the Adlib software can be found on our downloads page. Normally you can replace the Adlib software with an upgrade to a more recent version without having to convert data or make other adjustments. The software is so-called 'upwards compatible'.

Because in recent years standard Adlib applications have become more and more widely used (as opposed to tailor-made applications), we also introduced a version numbering for the applications. This makes it for us and for you easier to keep track of differences and alterations. In contrast with the core software you can't just replace an application with a newer version, in general. This is because of the probability that your exact configuration differs from the standard and because data structures might have been suited to your organization. When you would replace your customized application by a new standard one just like that, there would be a chance of it becoming faulty, for instance because of tags having gotten a different meaning. Recent application version numbers are 4.4 and 4.2 (library, museum and archive).