I need help editing a custom netload dll file.

[jamesbarnett]

The survey company I work for has a custom DLL that a previous employee wrote. The file is for calculating inverts on manholes and inverts. We click on the cogo point and the program asks how many inverts we have, then it asks for the measurement from the rim to each pipe. It finally asks where you would like to place the mtext block. The text comes in on the wrong text style and even though it says it is annotative it is not, and we want to change a few of the words that it outputs. 

I have no idea how to edit this file, but I'm the only one that has had any programming experience. 20 years ago I took qbasic, c++, and java script. I need some recommendations on opening this file so I can edit it. I downloaded Visual Studio, drug the DLL file into it, but that didn't do me any good. Can anyone point me in the right directions?

[Jeff_M]

You will need the source code, as you cannot directly edit a DLL. If the tool was written for the company, on company time, the former employee should have left that source code with the company. If the source is not available, and the dll was not obfuscated, you may be able to decompile it enough to recreate the code using a tool such as ILSpy.

When you get the source code and still need help, just post back with where you are stuck. If you need the tool rewritten, feel free to contact me at support@quuxsoft.com

[Tex]

There is no source code at the company. I'll try to decompile it using the software you suggested.

Thanks