Hi, Goldstar. I tried that in several different ways. My hexalock protected disk is a Chemistry book which has a bunch of PDFs.
At first, I tried to use your VB6 soft to replace my acrobat.exe. It didn’t work at all. Seems that the fake acrobat.exe didn’t tricky HCPSmng. So I tried another way.

After I inserted the CD, the content have been opened by Acrobat. (professional 7.0) I tried to use your software to dump the pdf to my hard drive. It didn’t work when the name of the software is acrobat.exe. I was making progress when I rename acrobat to iexplore, as you suggested. It seems that HCPS thought it is really IE and locked it. So I was able to dump some PDF out which is not 0 byte PDF file. But there are all blank without content. The biggest file couldn’t be opened with “damaged” reminding. There is a “An unrecognized token ‘8o’ was found" reminding when I tried to open the dumped introduction PDF file.

I tried to rename it to nescape. It is exactly the same situation. Anyway, those PDF file begin with %PDF-1.5%, which means I am making progress. It is just I am not sure if I do something wrong at this. Could you please give me more suggestions? Thanks.