I think alot of people are going to find this question EXTREMELY confusing. You should elaborate a little. Tell us what you are referring to with the term "private bytes". Is this object an uncompiled text file? Is this a loaded executable? What version compiler and language and operating system are you using? What dependencies do you have? Most important, why do you need this information? (This will supply us with a context.) And, of course, what the heck are "public bytes"? (Is this a scope problem?) ...Details,...specifics...be verbose... ...or, maybe, just google it...