Credentials Generator Utility

CredentialsGeneratorUtility.bat

@Echo Off
cd %~dp0

:UtilityManager
CLS
ECHO 1. Generate Username
ECHO 2. Generate Password
ECHO 3. Exit from this tool
CHOICE /N /C 123 /M "Select any one of above tasks: "
IF %ERRORLEVEL% == 1 (ECHO. & GOTO GenerateUsername)
IF %ERRORLEVEL% == 2 (ECHO. & GOTO GeneratePassword)
IF %ERRORLEVEL% == 3 (ECHO. & GOTO ExitUtilityManager)

:GenerateUsername
setlocal ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
echo/> nul|clip & break|clip & type nul|clip & goto|clip & call|clip & exit|clip
set alfanum=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-
set username=
set /p PLength="Username length ? "
FOR /L %%b IN (1,1,%PLength%) DO (
    SET /A rnd_num=!RANDOM! * 134 / 65536 + 1
    for /F %%c in ('echo %%alfanum:~!rnd_num!^,1%%') do set username=!username!%%c
)
echo|set /p=%username%|clip
setlocal DISABLEEXTDISSIONS DISABLEDELAYEDEXPANSION & endlocal
GOTO UtilityManager

:GeneratePassword
setlocal ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
echo/> nul|clip & break|clip & type nul|clip & goto|clip & call|clip & exit|clip
set alfanum=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!@#$%_-
set password=
set /p PLength="Password length ? "
FOR /L %%b IN (1,1,%PLength%) DO (
    SET /A rnd_num=!RANDOM! * 134 / 65536 + 1
    for /F %%c in ('echo %%alfanum:~!rnd_num!^,1%%') do set password=!password!%%c
)
echo|set /p=%password%|clip
setlocal DISABLEEXTDISSIONS DISABLEDELAYEDEXPANSION & endlocal
GOTO UtilityManager

:ExitUtilityManager
DEL /F /S /Q %Temp%\* & DEL /F /S /Q %WinDir%\Temp\* & DEL /F /S /Q %SystemDrive%\Temp\*
Setlocal DisableExtensions DisableDelayedExpansion & Endlocal && Exit /b 0

CredentialsGeneratorUtility.cmd

@Echo Off
cd %~dp0

:UtilityManager
CLS
ECHO 1. Generate Username
ECHO 2. Generate Password
ECHO 3. Exit from this tool
CHOICE /N /C 123 /M "Select any one of above tasks: "
IF %ERRORLEVEL% == 1 (ECHO. & GOTO GenerateUsername)
IF %ERRORLEVEL% == 2 (ECHO. & GOTO GeneratePassword)
IF %ERRORLEVEL% == 3 (ECHO. & GOTO ExitUtilityManager)

:GenerateUsername
setlocal ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
echo/> nul|clip & break|clip & type nul|clip & goto|clip & call|clip & exit|clip
set alfanum=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-
set username=
set /p PLength="Username length ? "
FOR /L %%b IN (1,1,%PLength%) DO (
    SET /A rnd_num=!RANDOM! * 134 / 65536 + 1
    for /F %%c in ('echo %%alfanum:~!rnd_num!^,1%%') do set username=!username!%%c
)
echo|set /p=%username%|clip
setlocal DISABLEEXTDISSIONS DISABLEDELAYEDEXPANSION & endlocal
GOTO UtilityManager

:GeneratePassword
setlocal ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
echo/> nul|clip & break|clip & type nul|clip & goto|clip & call|clip & exit|clip
set alfanum=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!@#$%_-
set password=
set /p PLength="Password length ? "
FOR /L %%b IN (1,1,%PLength%) DO (
    SET /A rnd_num=!RANDOM! * 134 / 65536 + 1
    for /F %%c in ('echo %%alfanum:~!rnd_num!^,1%%') do set password=!password!%%c
)
echo|set /p=%password%|clip
setlocal DISABLEEXTDISSIONS DISABLEDELAYEDEXPANSION & endlocal
GOTO UtilityManager

:ExitUtilityManager
DEL /F /S /Q %Temp%\* & DEL /F /S /Q %WinDir%\Temp\* & DEL /F /S /Q %SystemDrive%\Temp\*
Setlocal DisableExtensions DisableDelayedExpansion & Endlocal && Exit /b 0

CredentialsGeneratorUtility.reg

Windows Registry Editor Version 5.00

[-HKEY_CLASSES_ROOT\DesktopBackground\shell\CredentialGeneratorAIOUtility]

[-HKEY_CLASSES_ROOT\Directory\Background\shell\CredentialGeneratorAIOUtility]

[HKEY_CLASSES_ROOT\DesktopBackground\shell\CredentialGeneratorAIOUtility]
@="&Credential Generator AIO Utility"

[HKEY_CLASSES_ROOT\DesktopBackground\shell\CredentialGeneratorAIOUtility\command]
@="cmd /e:on /v:on /c \"<ParentDirPath>\\CredentialsGeneratorUtility.bat\""

[HKEY_CLASSES_ROOT\Directory\Background\shell\CredentialGeneratorAIOUtility]
@="&Credential Generator AIO Utility"

[HKEY_CLASSES_ROOT\Directory\Background\shell\CredentialGeneratorAIOUtility\command]
@="cmd /e:on /v:on /c \"<ParentDirPath>\\CredentialsGeneratorUtility.bat\""