You may register or un-register any DLL file in Windows server with the command REGSVR32
Syntax
REGSVR32 [/U] [/S] [/N] /I:[CommandLine] DLL_Name
Key
/u Unregister Server.
/s Silent, do not display dialogue boxes.
/i Call DllInstall to register the DLL.
(when used with /u, it calls dll uninstall.)
/n Do not call DllRegisterServer, you must use this option with /i.
CommandLine An optional command line for DllInstall
/c Console output (old versions only).
Examples
Unregister (disable) XP Zip folders
REGSVR32 /u C:\Windows\System32\zipfldr.dll
Unregister (Disable) CAB file viewer:
REGSVR32 /u C:\Windows\System32\cabview.dll
Register (enable) XP Zip folders
REGSVR32 zipfldr.dll
Register (enable) CAB file viewer:
REGSVR32 cabview.dll
Before installing the DLL, remember that the DLL file should be placed within C:\Windows\System32.
Please make sure that the DLL you are installing is not affected with any virus or bad script else it may compromise your server. Installing a custom build DLL should be double checked for any bad script.
