I have a new laptop and downloaded sidekick98. It worked and later I had a message "sidekick98 has stopped working". I reloaded and it worked. I again had the message and this time I used system restore. This worked. I am not sure what it could be and maybe Microsoft will comment. I have loaded the WinHelp update which is not supported on Vista. This allows me access to Help. Sidekick 2 works well- I have had this since Windows 95.