aggregatorhost.exe is a program which is probably NOT a virus or malware. So, if aggregatorhost.exe is on your PC, it is probably ok, and will NOT cause problems. Even if your PC is clean, it is still recommended to use a well-known antivirus with a good track record, in order to defend your system against threats.
This program is normally found on disk in C:\Windows\System32\AggregatorHost.exe.
The MD5 checksum for this executable is 87cbf4a08ae1fd2573d0c3ac90f05781.
This program does NOT operate as a Windows service. This is normally a good sign.
aggregatorhost.exe seems to have something to do with Windows SFC (System File Checker) or Windows File Protection.
64-bit code has been detected. This exe can exploit the full power of a current computer processor.
aggregatorhost.exe has a digital signature. Today most virus-free software applications are digitally signed.
The digital signature found in aggregatorhost.exe is valid. This is excellent.
Digital certificate name: Microsoft Windows
Certificate's issuer name: Microsoft Windows Production PCA 2011
This program does NOT have a removal routine stored in registry.