Which midas.dll to use? 32bit datasnap/64bit server

Question

Considering the following: We have a 32 bit Datasnap server installed on a 64 BIT Windows Server

In embarcadero\rad studio\11.00\redist are 2 folders : 32 bit and 64 bit, with in each a midas.dll.

Which file should we put where?

In windows\system32 or windows\syswow64?

Answer 1

On a 64 bit system:

• The 64 bit system directory is named System32.
• The 32 bit system directory is named SysWOW64.

If you must copy a DLL into the system directory, make sure that you copy 32 bit DLLs to the 32 bit system directory, and 64 bit DLLs to the 64 bit system directory. That's essential if you want your application to be able to locate the DLL.

Since your code is 32 bit, you need to use the 32 bit DLL.

However, you should probably place the DLL in the same folder as your executable since the Windows system directory is private and reserved for use by the system. Applications should not modify the system directory.