You can use WDEB386 as a vxd and also save about 90K of conventional memory. You will not, however, be able to access symbols until after the Device_Init message is sent to your VxDs (during Windows 95 startup). So, if you use the /b option with WDEB386 to break in VMM32 initialization, the debugger will have no knowledge of symbols until Device_Init is sent.