The old exe does not work on some pc systems it seems to be broken. A work around is for the purchaser to locate the dll file and share it as well as the Dim downloads files after installing it to specified location using DIM. And share it that way. If you manually place the dll file then run the DIM files it makes the serial key not necessary to input and runs.Not sure for how many pc's it will work that way though As the serial is required.