Some of the programs on the Windows are not functional on the Windows 8. But it can be making useful with the help of previous version of .Net Framework. By using this .Net Framework makes the both windows in such a way that any new or older version can be operated at a same time.
Tutorial to install Old Versions of Microsoft .Net Frameworks on Windows 8
Installing the .Net Framework
.Net Framework works now on a optional basis. That in such a way, if you need to run some old programs, you can call back the older versions of .Net Frameworks. This can be done by the help Run box, hitting the Windows + R key will call up the box, type appwiz.cpl.
Wait for the control panel to open, move on to the Programs and Features sections, check out the link of the “windows features” through which you can turn them on or off.
Mark in the check box to allow installing the .Net Framework 3.5.
Windows updater will download the stuff and might be require some permission to restart when this process ends. You have successfully installed your desired version of Microsoft .Net Framework without any problem.