Unfortunately, I was slow to respond to the answer to my last query as I need time to try out the solution. It appears that if you don't mark a response within 14 days, it marked down as a solution.
Unfortunately, the download did not run under Windows 7. In trying to install the Vaio Control Centre, the message "The current OS version could not support VCC". Some of the other utilties could be loaded, but it was the facility to control the charge limit on the battery I was looking for.
This got me looking through the machine, and although the old utility files were not in a folder called C:\ Utils, they were in a programme folder under "Sony". Trying to run the original Vaio Control Centre brought up a screen but none of the options, buttons or menus were highlighted and could not be used.
I realised that years ago when the operating system was upgraded from Vista to Windows 7, the Utility was no longer compatible and ceased to function. I am assuming that Sony never upgraded this old utility to work in Windows 7. Shame.
So, I was grateful for the response and the link to the download, but readers should note, the problem was NOT resolved.
