Micro Focus Visual COBOL 3.0 for Eclipse (Windows) > Programming > Data Access > File Handling > File Handling Guide > File Handler and Sort APIs > Calling the File Handler > Dynamic Redirection to a Custom File Handler > Specifying a List of Custom File Handlers

Specifying a List of Custom File Handlers

To specify your a list of custom file handlers, you use the DYNREDIR environment variable, as shown below:

Windows:

set DYNREDIR=mod1!ep1[:mod2!ep2[:mod3!ep3]]

UNIX:

set DYNREDIR=mod1!ep1[:mod2!ep2[:mod3!ep3]]
export DYNREDIR

where:

mod`n`	is the module containing a custom file handler
ep`n`	is the name of a custom file handler's entry point

Note: Parsing of the DYNREDIR environment variable stops if modn or epn is longer than 30 characters. If this happens, the custom file handler with the name that is longer than 30 characters and any custom file handlers defined after it are ignored.

For example, setting DYNREDIR as shown below specifies three separate file handlers:

set module1!userfh1:userfh2:module3!userfh3
export DYNREDIR

The file handlers specified are:

userfh1 in the module1shared library (UNIX) or .dll file (Windows)
userfh2
userfh3 in the module3shared library (UNIX) or .dll file (Windows)

If a module is configured for a given file handler, that module is loaded during Micro FocusFile Handler initialization.