With any BAT or BTM, as soon as I press "Start" or "Start without debugging" IDE.EXE crashes (... has stopped working ...). There's no ide.exception.log. Here's what Windows says. Code: Problem signature: Problem Event Name: APPCRASH Application Name: IDE.EXE Application Version: 18.104.22.168 Application Timestamp: 56abd90a Fault Module Name: IDE.EXE Fault Module Version: 22.214.171.124 Fault Module Timestamp: 56abd90a Exception Code: c0000005 Exception Offset: 00019605 OS Version: 6.1.7601.2.1.0.256.48 Locale ID: 1033 Additional Information 1: 0a9e Additional Information 2: 0a9e372d3b4ad19135b953a78882e789 Additional Information 3: 0a9e Additional Information 4: 0a9e372d3b4ad19135b953a78882e789 If I choose to debug, I get "Unhandled exception at 0x00369605 in ide.exe: 0xC0000005: Access violation reading location 0x02020222". Although the locations differ, the two reports above (Windows and VS2010) are from the same crash. The location is different each time! The 0x02020222 is the same each time.