Word 2007

I found a solution for Excel 2007
If you have ever tried to open an excel document and received the error that says "There was a problem sending the command to the program", you can fix it by doing the following:
1. Open Excel 2007
2. Open the Menu in the top left
3. Click the "Excel Options" button
4. Click the advanced tab on the left of the options screen
5. Under the general options uncheck the box "Ignore other application that use Dynamic Data Exchange (DDE)"

Here is something for Word 2007 http://support.microsoft.com/kb/921541
specifically this section Delete the Word Data registry key

 

Hi

What Windows version and Service Pack are you running?
What Security software are you running, make and version? (some apps have a Office Scan component that does cause issues)

Do you have multiple accounts on this PC and if so are the other accounts affected by this?

Outside chance if the info that Plodr posted doesnt fix this, is this in that DDE causes an issue, wrong registry setting and I never yet forund what causes it but this has fixed a few for me.

HKEY_CLASSES_ROOT \ Word.Document.12 \ shell \ Open \ ddeexec
to
HKEY_CLASSES_ROOT \ Word.Document.12 \ shell \ Open \ ddeexec.bk

HKEY_CLASSES_ROOT \ Word.Document.12 \ shell \ Open \ command \ command
to
HKEY_CLASSES_ROOT \ Word.Document.12 \ shell \ Open \ command \ command.bk

copied:
HKEY_CLASSES_ROOT \ Word.Document.12 \ shell \ Open \ command \ (Default)
to
HKEY_CLASSES_ROOT \ Word.Document.12 \ shell \ Open \ command \ Default.bk

editted:
HKEY_CLASSES_ROOT \ Word.Document.12 \ shell \ Open \ command \ (Default)
from
"C:\Program Files (x86)\Microsoft Office\Office12\WINWORD.EXE" /n /dde
to
"C:\Program Files (x86)\Microsoft Office\Office12\WINWORD.EXE" /n "%1"