Survex on Windows, invalid coordinate system / invalid PROJ string syntax

[detrito]

Hello,

The IT installed survex on my Windows computer (attachement n°2).
I tried it with the Sample Data [1] and Aven works well.

I'm used to use the following syntax to define the coordinate system :

; coordinate system CH1903+_LV95 fot both input and output
*cs EPSG:2056
*cs out EPSG:2056

This syntax works well on my linux installation, but on windows I get
the following errors (attachement n°1) :
- "système de coorodnnées non valide" (invalid coordinate system)
- "invalid PROJ string syntax" 

Any idea how to fix this ?

Thanks and best regards, d.

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gpg --recv-key 0x88D6D3C6