The [SourceDiskNames] section is required and describes the name and path of the disk on which your application resides.
[SourceDisksNames]
disk_ordinal= ,disk_label,,path
[disk_ordinal= ,disk_label,,path]
The following code example shows a typical [SourceDiskNames] section.
[SourceDisksNames] ; Required section
1 = ,"Common files",,C:\app\common ; Using an absolute path
[SourceDisksNames.SH3]
2 = ,"SH3 files",,sh3 ; Using a relative path
[SourceDisksNames.MIPS]
2 = ,"MIPS files",,mips ; Using a relative path