Hi all,
I have an Envirnoment Variable set, eg: SOMESDK_DIR to C:\somesdk ie.

<In COMMAND Window>
c:\SET SOME_DIR
c:\somesdk
<end>

Now I have some files in this SDK a.c and b.c. I want to include them
in the project. When I try adding the file, using the Add Existing
Files option, the absolute path is taken. I tried editing the vcproj
file in an editor and found the following

<CODE>
<Filter
    Name="Source Files"
    Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
    UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
    >
    <File
        RelativePath="c:\somesdk\a.c"
        >
    </File>
    <File
        RelativePath="c:\somesdk\b.c"
        >
    </File>
</Filter>
</CODE>

I replaced the above with

<CODE>
<Filter
    Name="Source Files"
    Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
    UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
    >
    <File
        RelativePath="$(SOMESDK_DIR)\a.c"
        >
    </File>
    <File
        RelativePath="$(SOMESDK_DIR)\b.c"
        >
    </File>
</Filter>
</CODE>

When I try opening the file, I get the following error

"c:\work\testproject\$(somesdk_dir)\a.c Cannot open file"

C:\work\testproject is my project dir.

Can someone please tell me who to add an Envirnoment Variable?

--
Regards
Libin