Here's a quote:
Mark Russinovich (Author of the "Bible",
Windows Internals, co-founder of Winternals and Sysinternals, and since both companies were bought by Microsoft, now a senior Microsoft employee) was asked:
Quote:
Hi Mark, do you really think that Registry junk left by uninstalled programs could severely slow down the computer? I would like to 'hear' your opinion. His reply fairly captures my own view:
Quote:
No, even if the registry was massively bloated there would be little impact on the performance of anything other than exhaustive searches.
On Win2K Terminal Server systems, however, there is a limit on the total amount of Registry data that can be loaded and so large profile hives can limit the number of users that can be logged on simultaneously.
I haven't and never will implement a Registry cleaner since it's of little practical use on anything other than Win2K terminal servers and developing one that's both safe and effective requires a huge amount of application-specific knowledge.