I am sorry to say that I made a mistake in my first post! For Palm OS application, the TypeID will always be 'appl'. The system distinguishes databases based on their creator ID (not Type ID).
The Palm OS actually does not care about the file name(should say database name). Applications with identical creator IDs cannot coexist on the same handheld; during installation the new application will replace the existing application that possesses the same creator ID.


Best Regards,
---------------------------------
Huiqiang Zhang
Mail: [EMAIL PROTECTED]
---------------------------------
Firma Hoffrichter GmbH
Mettenheimer Strasse 12/14
19061 Schwerin
www.hoffrichter.de

----- Original Message ----- From: "Steven Fisher" <[EMAIL PROTECTED]>
Newsgroups: palm-dev-forum
To: "Palm Developer Forum" <[email protected]>
Sent: Wednesday, January 26, 2005 4:07 PM
Subject: Re: Multiple program versions



Huiqiang Zhang wrote:
Did you changed the program's CreatorID or TypeID? Normally if a new version of a program is installed, and it has the same TypeID as the old version program which still exist in the device, then the Palm OS will replace the old version of the program. So if you make all the versions of your program always with the same TypeID and CreatorID, everything will be OK!

What if the file names vary, i.e. if the PRC is actually called Program_v1.0.prc vs. Program_v1.1.prc?


(No, I don't put version numbers in the name, but it seems to be something the OP might have been doing. Maybe I misunderstood.)

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