QTP的环境变量分为Built in和User Define两类，在内建的环境变量中，有些环境变量并没有列出来，例如：EXE_ENV_1、LNCH_ENV_1、CHLD_ENV_1等。
To use environment variables to define the details for Windows applications on which you want to record and run tests, you must use the appropriate variable names as specified below:
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Option
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Variable Names
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Description
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Application
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EXE_ENV_1 ... EXE_ENV_10
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The executable files on which QuickTest records operations when record and run sessions begin. You can specify up to ten executable files.
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Working folder
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DIR_ENV_1 ... DIR_ENV_10
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The folder to which the corresponding executable file refers (for each corresponding application).
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Program arguments
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ARGS_ENV_1 ... ARGS_ENV_10
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The command line arguments to be used for the specified application (for each corresponding application).
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Launch application
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LNCH_ENV_1 ... LNCH_ENV_10
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Whether to open the application when starting the record and run session (for each corresponding application).
Possible values:
0 (do not launch the application)
1 (launch the application)
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Include descendant processes
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CHLD_ENV_1 ... CHLD_ENV_10
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Whether to record and run on processes created by the application during the record and run session (for each corresponding application).
Possible values:
0 (do not record on descendant processes)
1 (record descendant processes)
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