TortoiseCVS is a great CVS tool if you are working in a Windows environment.
“Unlike most CVS tools, it includes itself in Windows’ shell by adding entries in the contextual menu of the file explorer, therefore it does not run in its own window. Moreover, it adds icons onto files and directories controlled by CVS, giving additional information to the user without having to run a full-scale stand-alone application.” -Wikipedia
However while installing TortoiseCVS on Windows 8.1 you might encounter an error that says “Error creating registry key” and the installation has to be aborted:
With the following steps you’ll have a workaround for the registry error while installing TortoiseCVS on windows 8.1:
Thats it! Now if you try installing TortoiseCVS again everything should go along well!