若navicat 17安裝后無法正常注冊，則可以嘗試以下方法。

把以下文本另存為.bat文件，每次執行，都會將試用剩余天數重置為14天，實現無限試用的目的。

本腳本主要以測試學習為目的用后請及時刪除，如果需要請購買正版.

@echo off
set dn=Info
set dn2=ShellFolder
set rp=HKEY_CURRENT_USER\Software\Classes\CLSID
:: reg delete HKEY_CURRENT_USER\Software\PremiumSoft\NavicatPremium\Registration14XCS /f  %針對<strong><font color="#FF0000">navicat</font></strong>15%
reg delete HKEY_CURRENT_USER\Software\PremiumSoft\NavicatPremium\Registration17XCS /f
reg delete HKEY_CURRENT_USER\Software\PremiumSoft\NavicatPremium\Update /f
echo finding.....
for /f "tokens=*" %%a in ('reg query "%rp%"') do (
 echo %%a
for /f "tokens=*" %%l in ('reg query "%%a" /f "%dn%" /s /e ^|findstr /i "%dn%"') do (
  echo deleteing: %%a
  reg delete %%a /f
)
for /f "tokens=*" %%l in ('reg query "%%a" /f "%dn2%" /s /e ^|findstr /i "%dn2%"') do (
  echo deleteing: %%a
  reg delete %%a /f
)
)
echo re trial done!
  
pause
exit