On Wednesday 25 July 2012 16:28:20 Michael Thayer wrote: > err:module:import_dll Library mspdb100.dll (which is needed by > L"Z:\\home\\michael\\[...]\\vcc\\v10sp1\\bin\\x86_amd64\\cl.exe") not found It looks like mspdb100.dll is not in your path (this is why it helps when you put it in current directory). Also, it looks like this can happen even in Windows [1][2]. Please check these links and see if they help. [1] http://cboard.cprogramming.com/cplusplus-programming/140922-missing-mspdb100-dll.html [2] http://superuser.com/questions/175080/error-the-application-has-failed-to-start-because-mspdb100-dll-was-not-found