Dynamically add path name or image name in vbscript

[manmanda]

Hello,
I saw vbscript command for execute imagemagick command
Set objShell = wscript.createobject("wscript.shell")
objShell.Exec("convert ""e:/myimages/image.png"" ""e:/myimages/image.jpg""")

My question is how to add image name or path name dynamically means image name or path name is a variable not static.

Thanks in advance