CheckOsVer is an application that will display your Operating System and Common Controls versions. It is small, free program which will report your Operating System Version and also the version of the Windows Common Controls installed on your Windows PC. It is completely free.

The immediate answer to that question is usually an easy one. Most people know whether they are running Windows 98, or Windows 2000 and so on. However there is a more detailed answer to the question and those details are often an important factor when tracing problems with software.

As an example of this, there are a number of Service Packs for the different operating systems which fix a number of reliability, compatibilitty and security issues.

CheckOsVer will report which operating system Service Packs are installed on your computer

Common Controls ?
The Windows operating system contains a set of components called the Windows Common Controls. These are the controls which give Windows its look and feel.

Different versions of the common controls support different features. Later versions of the common controls add more advanced features and in some cases, new controls. Some software requires a specific version of the common controls at a minimum in order to run correctly.

CheckOsVer will report which version of the Windows Common Controls are installed on your computer.

The license of this software is Freeware, you can free download and free use this system utility software.