Our company software is written on C++ for Win32 environment. Its not using Windows common objects. Could you recommend me Automation tool to load our internal dll to manipulate software and perform Functional Testing?
I was thinking about WinRunner. Is it good tool for this kind of task?
The only way you can be sure that any automation tool will work with your internal dll is to do a free trial and use the tool with applications. Tools are generally written for the widest audience but you may get lucky.