Problem

Im running a program that has a number of services running with it. These services require a logon in which a username and password is automatically put in. The problem is the password that was initially created was changed (your not suppose to change it after one is chosen) and it gets a logon error now because that first password is saved in the system, possibly the registry. I would simply just change the new password back to the old one to make them match but the problem is that the old password doesn't meet the complex password requirements.

Now to get the services running i have to manually open the services properties and paste in the new password in 2 places for each service to get it running. How could i go into the system and change the old password to match the new one, would that be in the registry? if so how do i go about finding it and then editing something like that if it is in a .dat file or something like that