Useing these two funcations, we can launch the application 
on the WR window.

Thanks & Regards,
RatnaRao

invoke application used in WinRunner.
system.util.run used in QTP.
Both are used for the same purpose but in different tools.

hi.invoke application and system.util .run botha re 
same.bue first on is used in winrunner and it contains 
sw_show method and system.util.run is used by QTP and it 
contains methos as open but the purpose is same

We can use both Invoke Application & systemutil.run in QTP

QTP can be said as it has more advanced feature than what 
winrunner supports

Both are used in QTP.

In most situations, you should use a SystemUtil.Run 
statement to run applications or to open files in their 
default application. A SystemUtil.Run statement is 
automatically added to your test when you run an 
application from the Start menu or the Run dialog box while 
recording a test. 
  Sy:SystemUtil.Run "C:\type.txt", "", "", ""

InvokeApplication statement is supported primarily for 
backward compatibility. 
          Sy: InvokeApplication "E:\Program Files\Plus!
\Microsoft Internet\IEXPLORE.EXE"

invokeapplication and system.util.run both serves the same 
purpose in QTP, but invokeapplication used while you are 
writing the script where as system.util.run is used when 
you record the application under test.

invoke_application is used in WinRunner to launch the 
application.

Both are used for QTP.Invokeapplication is used for 
Excutable files only.But System util can be used for any 
file.
This is upto my knowledge,if wrong sorry.

When you specify an application to open using the Record 
and Run Settings dialog box, QuickTest does not add a 
SystemUtil.Run statement to your test. 

The InvokeApplication method can open only executable files 
and is used primarily for backward compatibility.

Invoke application invoke only .exp files,
 systemutil.run invoke any type of files.
 invoke application can be used in in winrunner,system 
util.run can be used in QTP.both of the phenominon is same.
 U have  any qurriers contact with me through mail.
mail id:physics143@gmail.com

both are used for launch application but invoke-application
used during script writing& syssem.util.run is used during 
recordimg both are used in QTP

Invoke_Application is invoke the Exicutable Aplication.

If .Exe is not there invoke_application Does not work.

Systemutil.run We work in real time sinariyo becouse it 
execute the file what the path we are giving.

Both are doing smae job the mazer diffarense is  
Invokeapplication is used for Excutable files only.
Systemutil.run is used for any files.

If any mistakes let me know.

Hi,

Invoke and Systemutil.run are used to open an application. 
But the difference is that invoke function and 
systemutil.run is object.method. Generally QTP contains 
object.method with in the VB script.

we can use both in QTP.
Invoke application method is the old method. and The 
InvokeApplication method can open only executable files and 
is used primarily for backward compatibility.

system util.run is the new method. it will support to open 
any files.

Both can be used by QTP. Invokeapplication is used to 
open  .exe files where as Systemutil.run is used to run any 
application. 
For ex: 
1. For this path "C:\Program Files\Mercury 
Interactive\QuickTest 
Professional\samples\flight\app\flight4a.exe" both will work
2. For the path "C:\Documents and 
Settings\Kishore\Desktop\Flight.lnk" Only Systemutil.run 
will work, but not invoke application

You can run any application from a specified location using a SystemUtil.Run statement. 

"SystemUtil.Run" is especially useful if your test includes more than one application. 

You can specify an application and pass any supported parameters, or you can specify a file name and the associated application starts with the specified file open. 

for e.g. SystemUtil.run "iexplore.exe", "www.gmail.com"


"InvokeApplication" invokes an executable application.

Invokeapplication("  ") is use for Windows Application and 
systemutil.run is used for Web Based Application.

Invoke application is used to invoke any .exe file, where as
SystemUtil.Run works with any system utilities like
“Iexplore” apart from .exe file

For more details on the qtp refer to this blog:
http://ssofttesting.blogspot.com