From another application you have 2 options.

1.  Add a reference to DotNetNuke in your other application and use the API's to insert users..(Most likely the "better" idea, due to issues if future information changes....)

2.  Manually create the users using the various stored procedures available.....You can view some tutorials on my site http://www.mitchelsellers.com on how to create users via SQL. 

Some people would say that creating the users outside of the API is not a good idea as it could introduce issues, which might very well be true in future versions of the application, however it most likely will be faster and I am not sure how many changes actually would occur with the user account setup..

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-Mitchel Sellers
Microsoft MVP, ASPInsider, DNN MVP
CEO/Director of Development - IowaComputerGurus Inc.


Visit mitchelsellers.com for my mostly DNN Blog and support forum.

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Directly accessing the DNN data is not really a great way to go - given encryption issues and the need to access the membership datastore - that stuff is best left up to the API.

So since you need to use vb6 - and assuming this Vb6 application has some ability to access the live website.

It seems that a workaround for your problem may be to create a DNN module that the VB6 application can call to add users.

the vb6 makes a http call like:

http://www.mysite.com/default.aspx?tabid=101&myusername=username&myfirstname=firstname etc etc

the module on tabid 101 = processes the request and displays a message like

###SUCCESS###

or

###FAIL###

You can then process the returned page in vb6 and proceed from there.