A separate version of diCryptoSys.dll is provided which is compiled for X64 platforms.
If it detects a 64-bit machine, the installation program will install both the Win32 and Win64 core DLLs in the correct system directories.
The default directory for all other files will be C:\Program Files (x86)\CryptoSys.
Copies of files specific for 64-bit platforms are installed in C:\Program Files (x86)\CryptoSys\X64.
Please refer to our web page Using CryptoSys on a 64-bit system for more details.
The .NET Library DLL is compiled for both platforms. When compiling your .NET project in MS Visual Studio, make sure you set Solution Platforms to Any CPU. The ActiveX DLL is only for Win32 platforms.