How to make a certain macro help!

To make a really long story short I have a program i need to log into in which i dont remember the username or ID of my account but remember the password, and there is NO way for me to find out the username. But i do remember the first 5 characters are the username there are 3 remaining numbers to my username. So i figured that narrows it down a bit so the question is what macro program out there could i use to run a macro over and over again that tests different usernames or really numbers in this case? It would need to work like this, enter in the first 5 characters of the username that i know are right and will always be the same, then enter in 000, (then in short) if the name fails it will enter in 001, then if that fails 002 and so on till 999 if need be. Is it possible for me to make a macro like this and how? i really need help on this!

so the username would be like this BRTY1*** --- the first 5 characters i know are right and those last three are numbers 0-9 that i dont remember.

Thanks

The idea for an application which you have suggested is interesting :blink: , and i will also like to work on it, but there is little difficulty in having or developing this application, my question to you is, whether you wanted to develop an application containing this idea, and as per my understanding your requirement is somewhat login registration what we do in most of the site but there we get an option remember me on this computer but in your case you wanted to have digit numbers if that matches it will take as username and the password you only know, so you can enter it and have access to an account. please correct if I am out of path.