KB Issue
When trying to register a dll file, I get 'gacutil' is not recognized.
Issue Details
When you try registering a DLL or EXE file on your server, you may receive the following error.
gacutil is not recognized
gacutil -l ID3TagLibrary.dll
gacutil is not recognized as an internal or external command, operable program, or batch file
This error will happen if you are not running it from the location.
You will also need the Microsoft SDK installed on the server to use it.
SDK Installation on a Windows 2016 Server for the gacutil.exe file to register ID3TagLibrary.dll

Download Windows SDK«
Recreate IssueWhen trying to register a file without first opening the location of the file to be used.
From your CMD prompt, Type in (Your location; mine is G drive).
[CMD/Linux - Navigate to Folder Location]
CFFCS | CarrzSynEdit: | CMD (Windows Command Prompt) | L (Linux)
G:
:: Next, CD to the folder location.
cd InetPub\wwwroot\demo.example.com\Bin
:: Next, run the code to register your file. (This will give the error)
gacutil -i G:\InetPub\wwwroot\demo.example.com\Bin\ID3TagLibrary.dll

Resolve IssueYou will need to navigate to the .NET folder location.
From your CMD Prompt, Type in
[CMD/Linux - Navigate to folder and run script]
CFFCS | CarrzSynEdit: | CMD (Windows Command Prompt) | L (Linux)
cd /
:: Click [Enter]
:: Next, paste this in.
cd "Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.7.2 Tools"
:: Next, run the code to register your file.
C:\Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.7.2 Tools>gacutil -i G:\InetPub\wwwroot\demo.example.com\Bin\ID3TagLibrary.dll

Watch the video on how to install the Windows SDK on your server.
SDK Installation on a Windows 2016 Server for the gacutil.exe file to register ID3TagLibrary.dll

Download Windows SDK«