How can I install a driver using Inno Setup?

I'd like to install a driver for a serial port using Inno Setup. I have the inf file, and I can install the driver manually through de开发者_如何学Pythonvice manager, but I'd like to be able to include the driver in my installer so that users don't have to go through the trouble of installing the driver themselves.

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See InstallHinfSection in Microsoft documentation. The documentation also mentions how to invoke an installation by calling Rundll32.exe. Probably you'll end up with something like this:

[Files]
..
Source: "driver\my_x86driver.inf"; DestDir: {app}\driver;
Source: "driver\my_x86driver.sys"; DestDir: {app}\driver;

[Run]
..
Filename: {sys}\rundll32.exe; \
    Parameters: "setupapi,InstallHinfSection DefaultInstall 128 {app}\driver\my_x86driver.inf"; \
    WorkingDir: {app}\driver; Flags: 32bit;

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Note that you might need to run the setup in 64bit mode in 64bit systems to be able to install the driver:

[Setup]
..
ArchitecturesInstallIn64BitMode=x64 

Also you can put checks as to run the version of .inf file depending on machine architecture (e.g. Check: Is64BitInstallMode).

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I used dpinst like this:

 [Files]    
Source: "Source\dpinst\dpinst32.exe"; DestDir: "{app}\driver"; DestName: dpinst.exe; Check: not IsWin64; Flags: ignoreversion
Source: "Source\dpinst\dpinst64.exe"; DestDir: "{app}\driver"; DestName: dpinst.exe; Check: IsWin64; Flags: ignoreversion

[Run]
Filename: "{app}\driver\dpinst.exe"; Parameters: "/A /LM";

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This is a better answer: Install drivers with rundll32 or dpinst in Inno Setup?

Using InstallHinfSection on Windows 7 and beyond seems to be either broken or fraught with difficulty. Making it work from a batch file is difficult, making it work from Inno Setup is even more difficult. dpinst seems preferable, and is simpler.