Please enable JavaScript to view this site.

Thread Validator Help

Navigation: The User Interface > Starting your target program

Injecting into a running program

Scroll Prev Top Next More


Injecting into a running program


Thread Validator attaches to a running process by injecting the stub into the process so it can start collecting data.


Choose one of these methods of starting the injection:


menu File menu instructionStep Inject... instructionStep shows the Attach to Running Process wizard or dialog below


Or click on the Inject icon on the session toolbar.




Or use the shortcut


b_f3  Inject into running application



Administrator privileges


The following applies only if you did not start Thread Validator in administrator mode.


When choosing the inject method described in this topic, a restart of Thread Validator with administrator privileges will be required to proceed.





Injecting into a service?


If your process is a service, Thread Validator won't be able to attach to it.


Services can't have process handles opened by third party applications, even with Administrator privileges.


In order to work with services, you can use the NT service API and monitor the service


You may see this warning dialog when trying to inject into a service:





User interface mode


There are two interface modes used while starting a program


Wizard mode guides you through the tasks in a linear fashion

Dialog mode has all options contained in a single dialog

All the options are the same - just in slightly different places


In this section we'll cover the Wizard mode first and the Dialog mode later.



The attach to running process wizard


The first page of the wizard shows a list of running system and user processes.





The list shows the following information:


ID instructionStep The process ID

Admin instructionStep may show a admin-priv-iconsymbol to indicate a requirement for administrator privileges in order to run the program.

This requirement is automatically detected from the manifestexternalLink for the process.

Process instructionStep The process executable name

Choose a process before continuing:


Next >> instructionStep move to the next page of the wizard

The button will show the admin-priv-iconsymbol if you have selected a process which requires elevated privileges to run.



Page 1: Choosing the process


System processes / Services / User processes instructionStep show any or all of services and system or user processes in the list


Full path instructionStep shows the full path to the process executable in the list

Image Name instructionStep shows the short program name without path


Refresh instructionStep update the list with currently running processes


Clicking on the headers of the list will sort them by ID or by name using the full name or short name, depending on what's displayed.



Page 2: Data collection


The second page controls when to start collecting information.




Depending on your application, and what you want to test, you may want to start collecting data as soon as injection happens, or do it later.


If your program has a complex start-up procedure, initialising lots of data, it may be much faster not to collect data until the program has launched.


Collect data from application instructionStep if it's the startup Thread you want to monitor, then obviously start collecting data from launch



seeAlsoSee the section on controlling data collection for how to turn collection on and off after launch.



Summary and starting your program


The second page also confirms at the top which process you have selected to inject into, and prompts you to attach:


Attach... instructionStep injects Thread Validator into the specified process, showing progress status
The button will show the admin-priv-iconsymbol if you have selected a process which requires elevated privileges to run.


seeAlsoIn the general questions see Why might Inject or Launch fail? for troubleshooting launch problems.



Dialog mode


In Dialog mode, all the settings are in one dialog but which still looks similar to the first page of the wizard above.


The option of when to start collecting data, and whether to collect function and line times is at the top, as is the Attach... button itself.