I am the author of Process Lasso. I once had an issue with CCleaner deleting a registry key related to Process Lasso, and you fixed that rapidly -- thank you.
Now I have had another different set of user reports of CCleaner deleting either HKLM\Software\ProcessLasso and maybe HKCU\Software\ProcessLasso. This is a DIFFERENT key than was reported last time. The program files install folder, and application name, are "Process Lasso" (with the space) .. so perhaps that is throwing off the algorithm you're using to guess if a key is obsolete? I did NOT confirm these user reports myself, but they seemed legitimate enough to report to you.
Thank you very much for the great software and support.
Sounds like you need to figure out how come your software is not properly registering with the registry. Believe me, you have a bigger issue than you think if CCleaner's Reg cleaner (oft called the most gentle registry cleaner) is finding these entries.
Might I ask why the reg key and the program name are different? Also I don't think (??) this should cause this issue, but I will leave it to the Developers to comment on that.
Also, I could NOT recreate this issue (makes it hard to troubleshoot) what install options are these users using? What Operating System (I tested on a winXP SP3 fully patched.) I tested with ProcessLasso 3.84.8 as downloaded from Cnet.com