[Mapserver-users] wms server projection

[Markus Schnider]

Hi all

I have a umn mapserver 4.2 wms-server and chameleon.
I would include a layer of this wms server. The projection of the layer has an 
alpha value of 90 (init=epsg:21781), which produces an error.
<21781> +proj=omerc +lat_0=46.95240555555556 +lonc=7.439583333333333 +alpha=90 
+k=1 +x_0=600000 +y_0=200000 +ellps=bessel +units=m +no_defs  no_defs <>

so I would change the  alpha value to 89, but how can I include the projection 
in the mapfile withaout an entry  like 
"init=epsg:21781"
?

Is it possible to create my own projection in the web part of the mapfile?
Should I create an own file with my own projection like a 'epsg', 'esri', ... 
file (the server and the client could then use the same projection file)?

Which is the best way?

Thanks in advance

Markus Schnider

PS: Chameleon or the wms-server works at this time only if the alpha value is 
different of 90. So I changed the projection to this values.