dataexchangehost.exe is a application which is probably NOT a virus. So, if dataexchangehost.exe is on your system, it is probably ok, and will NOT be a cause for concern. Even if your system is virus-free, it is still recommended to purchase a good antivirus with a good detection rate, in order to yourself yourself against viruses and malware.
Usually, this application is found in C:\Windows\System32\DataExchangeHost.exe.
The MD5 fingerprint for this executable is 5c78c2c64716648c74df3ebf89c330dc.
This program is NOT registered as a Windows service. This is very good.
dataexchangehost.exe seems to use the functions of Windows SFC (System File Checker) or Windows File Protection.
This is a 64-bit executable. It runs using the full capacity of modern CPUs.
dataexchangehost.exe has a digital signature. Nowadays most clean programs are digitally signed.
The digital signature attached to dataexchangehost.exe checks out perfectly. This is very good.
Digital certificate name: Microsoft Windows
Certificate's issuer name: Microsoft Windows Production PCA 2011
This executable does NOT have an uninstall routine set up in registry.