Blocking Web-Based Market Installation Without Root

I was wondering if it possible to prevent app installations by going to the web market and installing from there. I saw one thread in the forum here where people said they blocked the DownloadManager process by using DroidWall, but that requires root (which I do not have and I was looking to avoid rooting my phone). I have a strong email password, but still wanted to prevent this function from being usable. Thanks for all help!!

 

Thanks El Presidente, that's a good consideration and I'll add it to my security layer, I hadn't considered that despite being offered it repeatedly by Google I'm still looking for anything that will block uploading by the web market if someone has account access, if anyone has suggestions there. Thanks!

 

Bump, and any all suggestions are appreciated!!