regsvr32 command can be used to register .dll file as command components in the registry.

Windows commands can be accessed from here. [3]

Examples:

1. Unload Research.bat

The file will contain:

regsvr32 /u /s "%programfiles(x86)%\Blackbaud\Research.dll"
del "%programfiles(x86)%\Blackbaud\Research.dll" 

2. Save Resarch.bat

rem add the date to the output
for /f "tokens=2-4 delims=/ " %%a in ('date /T') do set year=%%c
for /f "tokens=2-4 delims=/ " %%a in ('date /T') do set month=%%a
for /f "tokens=2-4 delims=/ " %%a in ('date /T') do set day=%%b
set date=%year%-%month%-%day%

rem Now add the time to the output
for /f "tokens=1 delims=: " %%h in ('time /T') do set hour=%%h
for /f "tokens=2 delims=: " %%m in ('time /T') do set minutes=%%m
for /f "tokens=3 delims=: " %%a in ('time /T') do set ampm=%%a
set time=%ampm%-%hour%%minutes%

mkdir V:\Research\%date%--%time%

copy V:\Research.dll R:\Research.dll
copy V:\Research.dll \\xxhhvapprzrp01\tools\dlls\Research.dll
copy V:\Research.vba V:\Research\%date%--%time%\

3. Load Research.bat

regsvr32 /u /s "%programfiles(x86)%\Blackbaud\Research.dll"
COPY "\\path-to-file\RE Software\Research.dll" "%programfiles(x86)%\Blackbaud\Research.dll"
regsvr32  "%programfiles(x86)%\Blackbaud\Research.dll"