Launch of preloaded on-screen keyboard as follows. Go to "start" - "All programs" and select the folder "Standard". In this folder you need to open the list. It is the on-screen keyboard that can be run by clicking on it. This onscreen keyboard can be customized to your own need. For example, in the menu "input Mode" you can define how will be the selection of characters that you want to print: using delays, or by clicking on the desired button. In addition, you can adjust the display mode on-screen keyboard.
If the keypad requires you to enter characters that are not in the layout of a physical keyboard, then the most expedient solution would be to install a third-party on-Screen keyboard" (Virtual keyboard). Download virtual keyboard at this link: http://mistakes.ru/download/virtualkey. This keyboard supports 75 language layouts and you can use it to enter text into 53 languages. It runs as a normal program, by clicking on the appropriate tab.
The onscreen keyboard can also be a feature of some web pages. Thus, many mail services and search engines (such as Google and Mail.Ru) have on their pages a special script to cause a virtual keyboard that can be relevant for people who use a computer in a different country and the keyboard which is not provided Russian language.
Another possible field of use of the virtual keyboard is a secure input of sensitive data (passwords, Bank account numbers, credit cards). If You do not exclude that for You watching any program that registers Your keystrokes on the keyboard, the virtual keyboard is a solution to this problem!