How to edit EXE with Hexeditor without currept

[madhav4u2005]

hello guys

i crack one exe successfully but now i cant find the my name in Register To :

so here i want my name and olly can find this string because program is in borland 1999 so its in the Tform13 Registration to: and this i found in hexedit but when i put my name the exe get currupted and icon get changed like win32 application

so how to change without any effect to exe size and is there any option to autofix the size of block ? or i have to do Rebulid the exe

please explain in detail with example if posible thanx alot for a huge support guys