go to http://www.mpp.org.np/ otherwise go to http://www.mpp.org.np/detail_guide/winxp.htm to know more detail otherwise download it: http://www.mpp.org.np/detail_guide/nepaliRomanizedkey/NepaliRomanKey.zip after download click install.extracted the zipped files and Run setup programme . Follow the instruction of the setup program and click close at last. after finishesd install, please click control panel and open "Date, Time, Languages, and Regional Options". then Click on the "Regional and Languages Options" and click on the Languages Tab.Click on the Details button.click on the Add button. Input Language Sanskrit. Keyboard layout/IME, select Nepali Unicode (Romanized). - Click Apply to save the changes.