Inno Setup是一個功能強大且靈活的工具，用於為 Windows 應用程式創建專業的軟體安裝程式。自 1997 年首次發佈以來，Inno Setup 一直是開發人員值得信賴的選擇。該工具因其簡單性和有效性而備受推崇，使開發人員能夠以最少的努力構建全面的安裝包。

Inno Setup 的一個突出特點是支持所有版本的 Windows，包括最新的版本。它提供了廣泛的自定義選項，使開發人員可以根據其特定需求定制安裝過程。其腳本引擎非常強大，能夠執行複雜的安裝任務和條件操作。

Inno Setup 也支持多語言安裝，確保軟體能夠接觸到全球受眾。該工具包括集成文件壓縮、密碼保護和數字簽名支持等功能，增強了安裝包的安全性和完整性。

Inno Setup 是開源的，為開發者提供修改和擴展軟體以滿足其獨特需求的靈活性。 活躍的社群和全面的文件使得入門和尋找常見挑戰的解決方案變得容易。 憑藉易用性、強大功能和多功能性的結合，Inno Setup 仍然是開發者創建可靠且使用者友好的安裝程式的首選。

主要功能：

• 多種安裝類型：根據用戶選擇創建完整或最小安裝。
• 自訂腳本：使用Pascal編寫腳本進行量身定制的安裝過程。
• 多語言支援: 輕鬆創建不同語言的安裝程式。
• 磁碟跨越：將安裝程序分散到多個磁碟上，以安裝大型應用程式。
• 檔案壓縮：使用內置壓縮選項減少安裝程式大小。
• 自動卸載程序：生成一個卸載程序以輕鬆移除軟體。
• 數位簽署：支持簽署安裝程序以增強安全性。
• 良好的文件說明：有詳細的文檔和強大的社群支持，提供幫助和資源。

• /LOG: Now logs INI entries. Also improved logging of icon entries.
• Added new [Setup] section directive: Output, which defaults to yes. If set to no the Setup Compiler will only check the script for errors and skip creating setup files.
• Console-mode compiler (ISCC) changes:

1. Added new command line parameters /DO and /EO. These can be used to disable or enable output, overriding the Output directive.
2. Added new command line parameter /Qp. Can be used to enable quiet compile while still displaying progress. Contributed by KngStr via GitHub.
3. ISCC now automatically specifies any Sign Tools configured using the IDE, eliminating the need to specify these using the /S command line parameter. Also contributed by KngStr via GitHub.

• Pascal Scripting changes:

1. Added new function CurrentSourceFileName, which returns the source file name of the [Files] entry that is currently being processed. The returned name may include constants. Note: Do not attempt to call this function from outside a Check, BeforeInstall or AfterInstall event function belonging to a [Files] entry with the external flag.
2. The already-existing StrToFloat and FloatToStr functions are now documented.
3. Strings and numbers are now highlighted. Based on contribution by maldoinc via GitHub.
4. Unicode Inno Setup: Added new class TStringStream.

• Inno Setup Preprocessor (ISPP) changes:

1. Added function DeleteFileNow.
2. Added 64-bit support to function ReadReg.

• Added official Scottish Gaelic and Turkish translations.
• Fix: [Setup] section directive UsePreviousLanguage was not working when Setup was running in 64-bit mode.
• Unicode [Code] based on RemObjects Pascal Script Git commit 97eefc260b41ba51328d95b4ed43669f38655720.
• Various documentation improvements. Contributed by jogo- via GitHub.