Just a thought, wouldn't it be more convenient to use the LFS restarter instead, to restart in rift mode automatically?
Faulting application name: LFS.exe, version: 0.0.0.0, time stamp: 0x541c5f77
Faulting module name: DSOUND.dll, version: 6.3.9600.16384, time stamp: 0x52158a8c
Exception code: 0xc000001d
Fault offset: 0x000686da
Faulting process id: 0x1560
Faulting application start time: 0x01cfd438c754a034
Faulting application path: D:\LFS_S2_ALPHA_Z\LFS.exe
Faulting module path: C:\Windows\SYSTEM32\DSOUND.dll
Report Id: 0935d775-402c-11e4-9c44-94de807f6645
Faulting package full name: