MsiInstallProductA function (msi.h)
The MsiInstallProduct function installs or uninstalls a product.
Syntax
UINT MsiInstallProductA(
[in] LPCSTR szPackagePath,
[in] LPCSTR szCommandLine
);
Parameters
[in] szPackagePath
A null-terminated string that specifies the path to the location of the Windows Installer package. The string value can contain a URL (e.g. http://packageLocation/package/package.msi), a network path (e.g. \packageLocation\package.msi), a file path (e.g. file://packageLocation/package.msi), or a local path (e.g. D:\packageLocation\package.msi).
[in] szCommandLine
A null-terminated string that specifies the command line property settings. This should be a list of the format Property=Setting Property=Setting. For more information, see About Properties.
To perform an administrative installation, include ACTION=ADMIN in szCommandLine. For more information, see the ACTION property.
Return value
| Value | Meaning |
|---|---|
|
The function completes successfully. |
|
For more information, see Error Codes. |
| An error that relates to initialization occurred. |
For more information, see Displayed Error Messages.
Remarks
The MsiInstallProduct function displays the user interface with the current settings and log mode.
- You can change user interface settings by using the MsiSetInternalUI, MsiSetExternalUI, or MsiSetExternalUIRecord functions.
- You can set the log mode by using the MsiEnableLog function.
- You can completely remove a product by setting REMOVE=ALL in szCommandLine.
Note
The msi.h header defines MsiInstallProduct as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Installer 5.0 on Windows Server 2012, Windows 8, Windows Server 2008 R2 or Windows 7. Windows Installer 4.0 or Windows Installer 4.5 on Windows Server 2008 or Windows Vista. See the Windows Installer Run-Time Requirements for information about the minimum Windows service pack that is required by a Windows Installer version. |
| Target Platform | Windows |
| Header | msi.h |
| Library | Msi.lib |
| DLL | Msi.dll |