First, we need download the JAR file in the releases. (Please choose the lastest version)
And then, we should put the file into your .minecraft/dynamicexchanger directory. At the same time, you should make a directory named libs in the directory, which is important for next operation.
Next, you need download asm library(asm-all-6.0_BETA.jar), whose website is this, and put it into the libs.
After these operations, the program has been successfully installed.