Help WinEdt to play nicely with Adobe Reader X

Apparently, with the release of Adobe Reader X, Adobe has changed its API, whatever that means. To me, it means that when I use PDFTeXify via WinEdt 5.5, I get lots of error messages and interruptions.

After a bit of work with Google, I've resolved my issues -- probably just in time for Reader XI. I decided to record the changes I made, all in one place, in case it might be helpful to you. Of course, this information comes without any warranty: you can do whatever you want with it, but I will not take any responsibility for the results.

Regardless, here's what I did: your milage may vary.

Under the WinEdt installation folder:

1. Open [Exec\Acrobat OpenDoc.edt]. Use // to comment out the line (for me, line 92) that says

   • IfOK(!|SendMessage("%$('Acro-Title');", $0111, "%$('Acro-BackMenuItem');");JMP("Exit");|);

   Replace this by

   • IfOK(!|SendMessage("%$('Acro-Title'); - [%N.pdf]");JMP("Exit");|);

   This should make Adobe Reader stop popping up the "Manage Trusted Identities" dialog box. Thanks to user Wenjie on the Adobe forums for offering this solution (at a page that's no longer archived).

2. Still in [Exec\Acrobat OpenDoc.edt]... comment out the "DDEOpen" command that refers to acroread (for me, line 107), and replace it by:

   • DDEOpen('%$("AcroRead")',"acroviewR10","control",0);

   This should make WinEdt stop showing the warning "Cannot Open DDE Link to:" You can read a bit more about this issue here, in the course of which you might form the opinion that Adobe doesn't care about your problems.

3. Save and close [Exec\Acrobat OpenDoc.edt], then open [Exec\Acrobat CloseDoc.edt] and make the corresponding change: Comment out the DDEOpen command (for me, line 36), and replace it by:

   • DDEOpen('%$("AcroRead")',"acroviewR10","control");

Update (11 Feb 2013): As predicted, Reader XI has already been released. The solutions above still work for me, except that I had to change both instances of "acroviewR10" to "acroviewR11".

Update (16 Feb 2018): Acrobat Reader DC does not seem to work with old versions of WinEdt. I switched to SumatraPDF, which works well with my WinEdt 5.5. See section 2.3 of the WinEdt Quick Guide for hints on setting up WinEdt to work with Sumatra PDF. For WinEdt 10 or later, see this answer on Stack Exchange.