将项目的现有版本和分支置于版本控制之下

I am the only developer of a software project. I did not use any version control until now. I know I can put the last version of the project under version control. The question is whether it is possible to put older versions and branches of the project under version control. If it is possible, how ? which version control software should I use ? (I am using Visual Studio 2008)I am the only developer of a software project.