I am writing a Basic MSI project and I want to be able to get just the drive letter and colon designation of the directory path selected in the Destination Directory dialog box. I know that this value is stored in the [INSTALLDIR] system variable, but could someone help me out with how I can parse out the selected drive letter from this variable?
A custom action would be needed to parse the INSTALLDIR path. If an InstallScript custom action is used, the GetDisk function will return the drive from a path provided to it.
Thanks Josh. One question though, how do I reference the system variable INSTALLDIR using this function? Can I simply use INSTALLDIR or do I need to enclose it in quotes, or in brackets, etc.?
For any immediate scheduled InstallScript custom actions, you can use the INSTALLDIR script variable to obtain the INSTALLDIR path. This can be passed as is to GetDisk (no quotes or brackets since it is a variable).
