Take the 2-minute tour ×  I have downloaded June bits of Pex and
June bits of SlimDX SDK. Installed them on my RTM VS2010
Premium. Pex explorations do not work. Reverting to Feb 2010
bits of SlimDX seem to cure the problem.  I've asked the same
question on Microsoft Forums and SlimDX forums, and neither
party wants to own this. How can I even begin to troubleshoot
this?  share|improve this question You should file a bug on the
SlimDX bug tracker; I don't recall seeing your GDNet thread
until now and I only found this via a random Google Alert.
However, I should warn you this doesn't sound like anything
that's at all related to SlimDX. The only things I can think of
offhand are that (a) C++/CLI assemblies in the GAC render PEX
unusable for some reason and (b) the SlimDX installer installs
some other file that's otherwise incompatible with PEX (mainly
we install the DX redists and the C++ runtimes). Can you get any
kind of debug log out of PEX? –  Josh Petrie Jul 26 '10 at 23:44
Would it be fair to say that VC1