Regshot is a software that is able to take Windows Registry snapshots and compare two of the snapshots that have been taken. Results can be displayed as a text or html document making it easy to find out what has been changed because only the modifications that have been discovered are listed.

It is possible to add directories as well that will also be checked for modifications. An add-on called UnDoReg makes it even possible to undo all the changes to the registry by simply loading the generated text report.

Update: Regshot has been in constant development ever since our first review in 2007. When you first start the application, you need to create a first Registry snapshot with a click on the shot button. Regshot dumps the whole Registry in a plain text or HTML document, depending on the choice made in the interface.

You can then create a second shot to compare the first Registry snapshot with the second one.

It may take a while before the comparison information are computed. The program opens them in a text editor or HTML document.

Taking Registry screenshots can be helpful for documentation or cleanup purposes. Registry snapshots can also be saved and loaded, which improves the program’s functionality significantly. Just click on the shot buttons and select the save or load functionality to do that.