Where I can download Dynatrace Server 64 bit edition ? I already sign up to Dyntrace for AppMon Trial and I download the exe "dynatrace-full-x86-64.msi". After setup, when I run Dynatrace Server, there are a 32bit app not a 64 bit app. I'm on 64 bits OS.
You can download the trail version of the AppMon 64 bit from here and also you have the installation step videos which helps you on the same.
the 64bit Windows installer comes with a 32bit dtserver.exe (and similar). However it will start 64bit sub-processes and windows should handle 32bit on 64bit fine out-of-the-box for the small launcher process.
You can use for instance process explorer and see that the real java process is running 64bit.
In short: don't worry, you got the right installer and everything is fine for 64bit.