Hi,
I have understood...
In the advanced settings there is an option: 'only do 1 autobackup per day'. If I untick it, it works! If it is 'on', the soft does not start with the command :"TweakingRegistryBackup.exe /silent". But if it is 'on' and if I launch the program normally (double click on .exe) and then I click 'Backup Now' > the tool starts normally!
I don't think there is anything to do with whether or not I have made an (auto) backup before.
I'll restart the PC tomorrow, with the version 4.0, after having unticked 'only do 1 autobackup per day'. The .bat should launch the line 'TweakingRegistryBackup.exe -silent' and I think it will be good.
By the way: are the backups made by version 3.5.0.3 fully compatible with those made by version 4.00 ?
Thanks, Paul Brussels Belgium
nb: I use the portable version