Here is the answer to your assumption:
http://www.visalaw.com/greencard.html
"Will applying for the lottery affect one's ability to receive a nonimmigrant visa?
Probably not. Technically, filing a visa lottery application is equivalent to filing
an immigrant petition. According to a source at the Department of State, a
consulate will only be notified IF the person is selected in the lottery. An
individual who is not chosen is on his honor to state that he/she applied for the lottery. Theoretically, if your name is selected in the lottery, you may have trouble renewing nonimmigrant status while waiting for your name to be cleared for processing (see discussion on the post-selection process for securing a green card). This should only be a temporary problem since permanent residency should eventually be awarded. There is still a risk that you will fail to be deemed eligible for the DV-2013 visa or the Department of State will have overestimated the number of individuals to select in the lottery (see discussion on how the selection process works). However, of all the lawyers with whom I have spoken, none have ever reported a problem with a client having entered the lottery. We have instructed our clients to answer the question on the DS-156 concerning previous immigrant visa applications as follows: "My lawyer entered me in the DV-2013 ottery." We have never had a problem reported and I have yet to hear of anyone denied a visa because of a previous lottery application. But caution is definitely warranted.: