Hi, im working on my college library management system created by someone i dont know, the problem is the changes i"ve made has no effect on the output whenever i run this application, i think the person who have developed that application has locked the code and prevented it from editing so help me to finish this stuff..............

I'm not up on Visual Basic, but could the file be write protected?
Is a COM type object wrapped in a DLL and the DLL isn't where you think it is? Application is looking in one spot and the DLL being built is in another? Release versus Debug difference?
Just throwing some ideas out there!

That doesn't make sense. You say you have edited the code but the changes make no effect? Step through the code with the debugger and see if it is running the code. You may have changed the wrong method?

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