ShellExecute/File Association/Security under Windows Vista
We use ShellExecute to open PDF files after generation. This works fine on 2000, XP and most Vista setups.
My problem is that one Vista machine opens the PDF in notepad. File associations seem correct - the user has Acrobat reader installed and can manually open PDF files. The user is not a local administrator.
Here is the code that opens the document: ShellExecute(handle, 'open', Pchar(sPDFFileName) , nil, nil, SW_SHOWNORMAL);
My problem is that one Vista machine opens the PDF in notepad. File associations seem correct - the user has Acrobat reader installed and can manually open PDF files. The user is not a local administrator.
Here is the code that opens the document: ShellExecute(handle, 'open', Pchar(sPDFFileName) , nil, nil, SW_SHOWNORMAL);
lyonst
Try using "runas" instead of open..
ASKER
Hi lyonst,
Thanks for your quick reply. I tried the 'runas'-verb after initial Googling, but could not get it to open documents on XP nor Vista:
This works: ShellExecute(handle, 'runas', Pchar('c:\windows\notepad.
This does not work: ShellExecute(handle, 'runas', Pchar('c:\testfile.pdf') , nil, nil, SW_SHOWNORMAL);
We do not want to hardcode 'runas' against 'C:\Program Files\Adobe\Acrobat 8.0\Acrobat\Acrobat.exe filename' since some people may want to use Foxit Reader. This would also mean that we need to detect the Adobe Acrobat installation directory.
Thanks for your quick reply. I tried the 'runas'-verb after initial Googling, but could not get it to open documents on XP nor Vista:
This works: ShellExecute(handle, 'runas', Pchar('c:\windows\notepad.
This does not work: ShellExecute(handle, 'runas', Pchar('c:\testfile.pdf') , nil, nil, SW_SHOWNORMAL);
We do not want to hardcode 'runas' against 'C:\Program Files\Adobe\Acrobat 8.0\Acrobat\Acrobat.exe filename' since some people may want to use Foxit Reader. This would also mean that we need to detect the Adobe Acrobat installation directory.
Ok thanks, I will take another look..
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ASKER
Hi Johnjces,
Your understanding is correct and your theory makes sense. I will get the user to re-install and let you know if this works.
Your understanding is correct and your theory makes sense. I will get the user to re-install and let you know if this works.
ASKER
The user re-installed Windows which resolved the issue... I guess the exact cause remains an issue :(
The user reinstalled Windows! Ouch! Or did he reinstall Adobe Acrobat reader?
John
and thanks! Glad I could help.
John
and thanks! Glad I could help.