Hi Boudewijn
The ideas that come to mind which can all be done easily in vfp are - Write the number of times the tool was called and/or other info to:
1) a normal dbf
2) a hidden file
3) a memory file
4) the registry
5) a specific location in his own file
I imagine there are even more options for acheiving this.
HTH
Jos
In the End, we will remember not the words of our enemies, but the silence of our friends - Martin Luther King, Jr.