The app I'm maintaining is sold all over the world. It uses GetVolumeInfo API for registration purposes. For some users, who have had various Asian (and who knows which other) language locales installed on their machines, one or both of the following could happen:

- the CD volume number would be returned with the last character missing (i.e. 10 instead of 11)
- the HD serial ID would contain a character outside of the 0-9, A-Z range (I have an example of an Á, A acute)

In some cases, the CD volume number would eventually return all 11 characters after the user returned all foreign language components from their system. The second problem started cropping up more recently so I have no idea where this is coming from.

I need to know whether there are localized versions of GetVolumeInfo, i.e. whether this API itself may work differently for different locales. At least I need to know whether it would change its behavior if the user added a language, and whether actually anyone saw this before.