Make a few changes in an exe program (no source file available)

i have a few words to change in a exe program that i don't have the source file? (but there's no installer so easy to open with an hexe editor or decompiler). i have made lots of changes with an hexe editor (french translation) but couldn't manage to change the name of the program in the title bar. also i have less than 10 other words to change shouldn't be to hard for a professionnal todo that i think the prog was written in pascal thanks for bidding!