Anonymous IP Surfing Windows App

I need an "Anonymous IP Surfing" windows app which will clear cache & cookies, allows users to manipulate their Timezone and User Agent, use proxies etc. More detailed and clear instructions will be provided. You will need to provide a completely working product within 20 days from the start of the project. Again, you will have 20 days maximum, from start to finish with all bug fixes and tests. **Please place your bid ONLY if you have the past experience in the similar projects. ** Please tell me why should I choose you and give me some info about your previous similar projects.