Using "exec cmd" with Apache CE

Hi Windows CE enthusiasts,

I have an IPAQ 2215 and am using Apache CE on it. All the features
seem to be working nicely except that whenever I try using the
"<!--#exec cmd" SSI I get an error. (No error on the webserver's own
window, but the client browser shows the generic SSI-error.)

I checked that the exe file that I am trying to run is in a directory 
which has ExecCGI and Includes options set in httpd.conf. This exe
file has nothing to do with stdin or stdout: I am not really
interested with CGI aspects, I just want it to be run everytime the
webpage is loaded, that's all.

Therefore here is my question. Has anyone successfully done this, ie.
using the "exec cmd" initiative to run any program at all?

Thanks a lot,

Erkcan Ozcan

PS: Could any of the registration settings for celib.dll affect this? 

PS2: Perhaps only those executables linked with celib.dll can be run.
However, I would naively not expect such a thing. Am I wrong? :)