bstrFilterName
A string indicating the filter name, three letters are used to specify any on LEAD Filter.
A complete list of filters that are supported is as follows:
XWD
XPM
XBM
WPG
WMF
WFX
VEC
TIF
TGA
SGI
RAS
PSD
PNM
PNG
PLT
PCX
PCT
PCD
MSP
MPG
MAC
LMB
LMA
JBG
ITG
IMG
IFF
ICA
GIF
FPX
FLC
FAX
EPS
DXF
DWG
DWF
DRW
DGN
CUT
CMP
CLP
CGM
CAL
BMP
AWD
AVI
ANI