Convert DLL to AFL

Hello: I recently purchased a system from a vendor. He did not share with me the source code or support details neither the CD. Later he told me it can be installed only on one machine. So was really upset with it and tried decompiling the .dll to see if I could remove the expiry date and make it hardware independent. It did not work with Refelector and said it is not a .NET module. Its written using the AFL language of Amibroker. Then, after researching further using CFF Researcher, I learnt that the source code is written in AFL of Amibroker and its packed into a .dll file using ASPack 1.02b or 1.08.03. I dont know how and what you do on earth to decompile it as far as you share with me the process to decompile i.e. how you are decompiling and provide me the decompiled version. Request your help. I know i shall not get the source code but can you please help me make it hardware independent and remove the expiry date? Thank You! Even if any of your friends can help, shall be grateful and obliged. For your perusal, am also enclosing the .dll. Thanks a lot in advance! If only software expiry can be removed and machine / hardware independence can be removed, the budget is INR 3000 (including how the file was decompiled). If the source code can also be provided, can pay INR 4000.