I met recently with Bob Nascenzi, the software industry executive who stepped in last May as the CEO of ProQuo, the San Diego startup that was created to help consumers control their personal information and reduce their junk mail.

I didn’t realize, however, that ProQuo had shut down. The last I heard about the company’s status was just over six months ago, when ProQuo founder Steven Gal sent out a mass e-mail to thousands of his contacts (including me) announcing Nascenzi’s appointment and his own departure to teach at Cornell University’s business school as a visiting professor. It seemed at the time like a straightforward change in CEOs.

Turns out it wasn’t. Nascenzi tells me he’s constrained in what he can say. But he says he worked with ProQuo’s chief creditor, San Jose, CA-based venture lender Western Technology Investment, to sell off the company’s assets and dissolve the corporation. Nascenzi says he shut ProQuo down at the end of July, and laid off the last six employees.

Gal, a veteran w