DLLspy searches your drives for Dynamic Link Libraries (DLLs) and makes a catalog of them. Every time you run DLLspy it searches your drive and compares what it finds to the contents of the prior catalog.

Any differences are reported to you with full version information on
the actual DLL and the information about that DLL in the catalog. You can use DLLspy to detect if application installation has caused a newer - or older - DLL to be placed on your system. DLLspy can be set to run every time your PC boots up.