These is my experience in finding securom version numbers..
I haven't got never an hex edit for that and someone recommended me to do so i downloaded an hex editor and runned it. I went to the search function and the typed "4.". This is enouth for our purposes. With the F3 keyboard key we can pass about ten to fiveteen non important keys till the version number. it always appears at the 98% of the file so this is the main idea and there isn't to many problems to locate it.

Good luck!