Custom Action Type 34
This custom action calls an executable launched with a command line. For more information, see Executable Files.
Source
The executable is generated from a file. The Source field of the CustomAction table contains a key into the Directory table. The referenced Directory table entry is used to resolve the full path to a working directory. This is not required to be the path to the directory containing the executable.
Type Value
Include the following value in the Type column of the CustomAction table to specify the basic numeric type.
| Constants | Hexadecimal | Decimal |
|---|---|---|
| msidbCustomActionTypeExe + msidbCustomActionTypeDirectory | 0x022 | 34 |
Target
The Target column of the CustomAction table contains the full path and name of the executable file followed by optional arguments to the executable. The full path and name to the executable file is required. Quotation marks must be used around long file names or paths. The value is treated as formatted text and may contain references to properties, files, directories, or other formatted text attributes.
Return Processing Options
Include optional flag bits in the Type column of the CustomAction table to specify return processing options. For a description of the options and the values, see Custom Action Return Processing Options.
Execution Scheduling Options
Include optional flag bits in the Type column of the CustomAction table to specify execution scheduling options. These options control the multiple execution of custom actions. For a description of the options, see Custom Action Execution Scheduling Options.
In-Script Execution Options
Include optional flag bits in the Type column of the CustomAction table to specify an in-script execution option. These options copy the action code into the execution, rollback, or commit script. For a description of the options, see Custom Action In-Script Execution Options.
Return Values
Custom actions that are executable files must return a value of 0 for success. The installer interprets any other return value as failure. To ignore return values set the msidbCustomActionTypeContinue bit flag in the Type field of the CustomAction table.
Remarks
A custom action that launches an executable takes a command line, which commonly contains properties that are designated dynamically. If this is also a deferred execution custom action, the installer uses CreateProcessAsUser or CreateProcess to create the process when the custom action is invoked from the installation script.
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