# Run Filter In Process

By default, Filter runs out of process. However, you can enable in-process filtering through the API or in the `formats.ini` file. If the type of process is not specified in the `formats.ini` or in the API, then Filter is run out of process. If the type of process is specified in the `formats.ini` and in the API, the setting in the API takes precedence.

## In the API

To run Filter in process, instantiate the Filter object using the constructor `Filter(string OutputCharSet, UInt32 filterFlags)`, and set the `FilterFlags` argument to `FILTERFLAG_INPROCESS`.

    objFilter = new Filter(outputCharSet, FilterConstant.FilterFlagsConstant.FILTERFLAG_INPROCESS);

## In the formats.ini File

To run Filter in process, set the following parameter in the `[FilterSDK_Config]` section of the `formats.ini` file to 1:

    default_inprocess=1

By default this is set to 0 (zero), which enables out-of-process filtering.

The `formats.ini` file is in the directory `install\OS\bin`, where `install` is the path name of the Filter installation directory and `OS` is the name of the operating system.

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