I’d say wow but I’m not surprised. You’ve always been ambitious and industrious, be it authoring solutions or upgrading properties for re-sale. Wishing you enduring "beyond expectation" success and financial freedom Keith. Cheers.

^C^C_Copybase;\\;erase;p;;; this knocks off with single selection. The only thing to make this better would to enable multiple/storage as with: Lee Mac's http://www.theswamp.org/index.php?topic=42007.msg471796#msg471796

Code - Auto/Visual Lisp: [Select]

1. ;;corrections in CAPITALS
2.     (setq fileprefix
3.         (cond
4.             ((getstring (strcat "\nEnter filename prefix: < "(setq fileprefix (if (not fileprefix) filename FILEPREFIX)) " >?: " )) FILEPREFIX)
5.             (t fileprefix)
6.         )
7.     )

Thanks Working perfect

Keith - awsome news! Congrats! I'd ask for a job too but I'm a fair way in the queue behind John, eh. I'm excited for you, well done.

Augusto: don't waste your time defending your code from people who would never ever pay for it anyway, especially at the probable expense of your customers (unpredictable weird problems), support (garbage stacktraces) and your productivity (you have better things to do). I have had to reverse-engineer obfuscated code before and it is ridiculously easy, I'm talking drag-drop onto de4dot, run JustDecompile on that executable and edit the code for an hour or 2 easy. All an obfuscator buys you is scrambled names for some of the things. More at https://stackoverflow.com/questions/506282/protect-net-code-from-reverse-engineering

Just make it easy for your customers to comply and pay you, and encourage them to do so. Use some kind of licensing (see https://www.theswamp.org/index.php?topic=50609). I sell a .NET app for $3.3k and I don't have a piracy problem, well apart from the odd rogue in China but meh. Sell to businesses, they don't steal stuff (as much). They also don't want the malware that comes with pirated software.

For better understanding, and to get further help,  please upload such sample.dwg