About 'Read-Only Access' Failure Emulation
Use this emulation type to check whether your application handles errors that can occur when it tries to modify read-only Registry keys. AQTime will catch all the attempts of your application to access the Registry key that you specified and will make your application “think” that the key is read-only.
Specifying Emulation Parameters
You can specify emulation parameters in the Profiler Options dialog which AQTime invokes upon running the Failure Emulator profiler or in the Failure Profiler Options dialog.
To create a new 'Read-Only Access' failure emulation and specify its parameters:
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In the dialog, click Add.
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On the first page of the subsequent Add New Failure Emulation wizard, select the Registry category from the list on the left, then select Read-Only Access from the list on the right and click Next.
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On the second page of the wizard, specify all parameters for the selected failure emulation and click Finish.
To modify parameters of an existing 'Read-Only Access' failure emulation:
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Click the ellipsis button in the Parameters cell.
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In the subsequent Edit 'Read-Only Access' Failure Parameters dialog, modify the desired parameters and click OK.
AQTime saves your settings between profiler runs, so you will not have to define parameters next time you run the profiler.
Parameters
Registry key(s)
Specifies the name of the registry key. If you want to simulate a situation when several registry keys which your application tries to modify are read-only, use wildcards or regular expressions to specify a mask for the target keys.
Options
Specifies whether you want to use wildcards or regular expressions to set other parameters of the failure emulation. Choose the desired type of special symbols to use from the drop-down list:
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Regular expressions are coded strings that define an infinite number of possible matches. For more information on regular expressions and how to use them in parameter values, see Regular Expressions.
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Wildcards are special symbols that can be used to match characters in string values. AQTime supports two standard wildcards: the asterisk (*) and the question mark (?). For more information on wildcards and how to use them in parameter values, see Using Wildcards.
To quickly insert a regular expression or a wildcard into a parameter value, click 
and select the desired item from the consequent menu. Note that the menu also provides a brief description of available regular expressions and wildcards.
For information on using the Failure Emulator profiler, see Failure Emulator Profiler - Overview.
See Also
Registry Failure Emulation
Failure Emulation Reference
Failure Emulator Profiler - Overview