RE: Concatenation with "&" in string....

> Try replacing "&" with "%26" in your URL

In case anybody else runs into this:  %26 would work from the browser
perspective (in that it resolved to the correct name) but would not work for
the database being called.  The database on the back end was not
substituting "&" for "%26" while the browser would.  Related to this there
are a ton of sites explaining why ampersands are not good characters to put
into URLs, especially when trying to pass parameters to back end
databases.....

The problem with ampersand itself was happening because Microsoft Command
Interpreter was taking the start command and trying to start a new command
with each ampersand shown.  "start
http://servername/csesc/csoe?cmd=CUSTOM_INT&pid=CV_KT&uid=admin&qty=2"; was
being interpreted like a batch file with 
"start http://servername/csesc/csoe?cmd=CUSTOM_INT";
"pid=CV_KT"
"uid=admin"
"qty=2".

The solution is to tell the command interpreter to ignore normal processing
of the ampersand by using a caret in front of it:

"start
http://servername/csesc/csoe?cmd=CUSTOM_INT^&pid=CV_KT^&uid=admin^&qty=2";
works.