Using ShellExecute to open associated files with context of other user or logon user. (Please look at the description to understand the problem)

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Hi,

I have an application, which will run in elevated mode on Windows Vista and Windows 7. It is a small music library application. I have options to open ,mp3 files with default programs.

Here is the problem.

If user on the PC already opened any .mp3 files with windows media player. The player will be opened with current logged on user rights.

If i try to open any .mp3 file with shell execute from my elevated application it is failing to open the file and throwing some error like "Server Execution failed".

Please help me how to solve the issue.

I am thinking to open the file with the logged on user privileges. How to open the .mp3 files with associated application using ::ShellExecute.

For error picture please look @ (i don't have option to upload picture here so) http://social.msdn.microsoft.com/Forums/en-US/vcgeneral/thread/28e5d5f6-960a-44c3-90e6-c8f6ec7f8b06[^]

I am calling the functionality like bellow

C++

SHELLEXECUTEINFO ExecInfo;
 
ExecInfo.cbSize			= sizeof(SHELLEXECUTEINFO);
ExecInfo.fMask			= SEE_MASK_INVOKEIDLIST;
ExecInfo.lpVerb			= NULL;
ExecInfo.lpIDList		= NULL;
ExecInfo.hwnd			= hwnd;
ExecInfo.nShow			= SW_SHOW;
ExecInfo.lpParameters	        = NULL;
ExecInfo.lpDirectory	        = L"D:\Songs";
ExecInfo.lpFile			= L"There is light that.mp3";
ExecInfo.hInstApp		= NULL;
 
::ShellExecuteEx(&ExecInfo);

Thanks in advance.

Posted 24-Oct-11 1:18am

krishnakumartm

Updated 27-Oct-11 4:52am

v2

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RKnGl · Answer 1 · 2011-10-24T02:07:00

Solution 1

Well ..Posting "current" code would be considered polite ...

ShellExecute(handle, "open", fullpathtofile_andfilename_andextension, NULL, NULL, SW_SHOWNORMAL);

try this one ..

Posted 24-Oct-11 2:07am

RKnGl

krishnakumartm · Answer 2 · 2011-10-24T20:09:00

C++

SHELLEXECUTEINFO ExecInfo;

ExecInfo.cbSize			= sizeof(SHELLEXECUTEINFO);
ExecInfo.fMask			= SEE_MASK_INVOKEIDLIST;
ExecInfo.lpVerb			= NULL;
ExecInfo.lpIDList		= NULL;
ExecInfo.hwnd			= hwnd;
ExecInfo.nShow			= SW_SHOW;
ExecInfo.lpParameters	        = NULL;
ExecInfo.lpDirectory	        = L"D:\Songs";
ExecInfo.lpFile			= L"There is light that.mp3";
ExecInfo.hInstApp		= NULL;

::ShellExecuteEx(&ExecInfo);

This is how i am calling the shell execute function.

Richard MacCutchan · Answer 3 · 2011-10-27T06:32:00

Solution 3

You must check the status of system calls if you expect to be able to diagnose errors in your code. The ShellExecuteEx()[^] function returns FALSE if it does not succeed, at which point you should call GetLastError()[^] to help diagnose why.

Posted 27-Oct-11 6:32am

Richard MacCutchan