nbrege wrote in
:
I want one of my applications to send an HTML email message to a user
with a hyper link in it to start up an executable with arguments
passed to it. It works fine if I just specify the executable path
with no arguments. But if I pass the arguments then Outlook says it
can't find the file.

There's no way to do this, URLs can't contain command-line arguments.
Outlook doesn't matter here, it's just not possible.

Here's some alternative approaches, assuming you control the server
that it's being downloaded from, and the code that's being run:

1. Request is "dostuff.exe?order=1234"; the server 302 redirects to
"dostuff_order_1234.exe", and dostuff.exe checks its own filename and
pulls command-line arguments out of there

2. Server drops a cookie with "order=1234" when it gets the request;
dostuff.exe reads cookies back out when it starts (this is probably
impossible on newer versions of Firefox, they changed the cookie code so
this is much more difficult than it used to be)

3. append bytes with the arguments to the executable, executable reads
its own binary at launch time. Works fine, but breaks code signing.

4. server downloads a zip file with a batch file in there, user runs
the batch file, batch file contains "dostuff order=1234"

5. define new file extension, '.dostuff'; user downloads a .dostuff
file containing "order=1234", associate .dostuff with your executable.


-- dan