Cannot deploy with custom meteor installation on Windows

I have a custom installation of Meteor on Windows

because the Windows machine is controlled by IT and has limited disk quota for /users

Therefore I unzipped the code given by avital in C:\Work\Software despite the instructions saying it should be unzipped in %LocalAppData%\.meteor because %LocalAppData% is obviously in /users

Everything works fine except the deployment to meteor.com which I rarely need so I only noticed now (because I was hunting a bug and wanted to put a sample to reproduce online)

The output of meteor deploy is clearly looking for executable son the wrong place

C:\Work\Software\chart_resize>meteor deploy graph_resize.meteor.com
Deploying to graph_resize.meteor.com.

C:\Work\Software\.meteor\packages\meteor-tool\1.1.10\mt-os.windows.x86_32\dev_bundle\lib\node_modules\fibers\future.js:245
                                                throw(ex);
                                                      ^
Error: EPERM, symlink '..\acorn\bin\acorn'
    at Object.Future.wait (C:\Work\Software\.meteor\packages\meteor-tool\1.1.10\mt-os.windows.x86_32\dev_bundle\lib\node_modules\fibers\future.js:398:15)
    at C:\tools\fs\files.js:1331:28
    at Object.wrapper (C:\tools\fs\files.js:1334:20)
    at C:\tools\isobuild\builder.js:461:17
    at Array.forEach (native)
    at walk (C:\tools\isobuild\builder.js:434:30)
    at C:\tools\isobuild\builder.js:459:11
    at Array.forEach (native)
    at walk (C:\tools\isobuild\builder.js:434:30)

C:\tools doesn’t exist and I can’t find it around %LocalAppData% so it might not have been created at all.

Any suggestion ?