Inno Setup 脚本

给你个我用的例子：

Delphi/Pascal code

 

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; 脚本用 Inno Setup 脚本向导生成。 ; 查阅文档获取创建 INNO SETUP 脚本文件详细资料!   [Setup] AppName=Common downloader AppVerName=Common downloader DefaultDirName={pf}XXXCommon downloader DefaultGroupName=XXXCommon downloader DisableProgramGroupPage=yes OutputDir= .Setup OutputBaseFilename=Common downloader setup V1.0.0 Compression=lzma SolidCompression=yes VersionInfoCompany=XXX VersionInfoVersion=1.0.0   [Languages] Name: "Chinese"; MessagesFile: "compiler:LanguagesChinese.isl" Name: "English"; MessagesFile: "compiler:LanguagesEnglish.isl"   [Tasks] Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: dontinheritcheck   [Files] Source: "CMDL.exe"; DestName: "Common downloader.exe"; DestDir: "{app}"; Flags: ignoreversion Source: "DL.dll"; DestDir: "{app}"; Flags: ignoreversion Source: "DM.dll"; DestDir: "{app}"; Flags: ignoreversion Source: "config.ini"; DestDir: "{app}"; Flags: ignoreversion Source: "App*"; DestDir: "{app}\App"; Flags: ignoreversion recursesubdirs createallsubdirs Source: "Boot*"; DestDir: "{app}\Boot"; Flags: ignoreversion recursesubdirs createallsubdirs Source: "Resource_cn*"; DestDir: "{app}Resource"; Languages: Chinese; Flags: ignoreversion recursesubdirs createallsubdirs Source: "Resource_en*"; DestDir: "{app}Resource"; Languages: English; Flags: ignoreversion recursesubdirs createallsubdirs ; 注意: 不要在任何共享系统文件中使用“Flags: ignoreversion”   [Icons] Name: "{group}Common downloader"; Filename: "{app}Common downloader.exe" Name: "{group}{cm:UninstallProgram,Common downloader}"; Filename: "{uninstallexe}" Name: "{userdesktop}Common downloader"; Filename: "{app}Common downloader.exe"; Tasks: desktopicon   [Run] Filename: "{app}Common downloader.exe"; Description: "{cm:LaunchProgram,Common downloader}"; Flags: nowait postinstall skipifsilent   [Registry] Root: HKLM; Subkey: "SoftwareXXX"; Flags: createvalueifdoesntexist Root: HKLM; Subkey: "SoftwareXXXCommon downloader"; Flags: uninsdeletekeyifempty Root: HKLM; Subkey: "SoftwareXXXCommon downloader"; ValueType: string; ValueName: "Path"; ValueData: "{app}" Root: HKLM; Subkey: "SoftwareXXXCommon downloader"; ValueType: string; ValueName: "Version"; ValueData: "V1.0.0" Root: HKLM; Subkey: "SoftwareXXXCommon downloader"; ValueType: dword; ValueName: "VersionNum"; ValueData: "100" Root: HKLM; Subkey: "SoftwareXXXCommon downloader"; ValueType: string; ValueName: "Release Date"; ValueData: "2008/09/29"   [Code] function InitializeSetup(): Boolean; var    Version: string;    strPath: string;    ResultCode: Integer; begin    Result:= TRUE;   //read the version   if RegQueryStringValue(HKEY_LOCAL_MACHINE, 'SoftwareXXXCommon downloader',      'Version', Version) then   begin     // Successfully read the value     Version := Format('Exist the version %s,whether uninstall it?',[Version]);     if MsgBox(Version,mbConfirmation,MB_YESNO) = IDYES then     begin      //read the path      if RegQueryStringValue(HKEY_LOCAL_MACHINE, 'SoftwareXXXCommon downloader',      'Path', strPath) then         begin          // Successfully read the value          strPath:= strPath + 'unins000.exe';          Exec(ExpandConstant(strPath), '', '', SW_SHOW,               ewWaitUntilTerminated, ResultCode);         end;     end else     Result:= FALSE;   end; end;

这个例子可以在安装之前卸载以前的版本，并提示你卸载之前的版本信息。