Lotus Notes: Connection Error [Microsoft] [ODBC Driver Manager] Data source name not found and no default driver specified
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In one of the Lotus Notes application which requires connection with external SQL DB, we have one user who is getting error message prompt because ODBC driver is not able to connect. 
I did following checks:
1. User had permissions to EDIT registry HKLM-Software-ODBC
2. User is able to access the db server (i pinged server IP from user's machine)
3. Made sure that user had admin acces to computer.

This is how code works. The code first runs a VBscript which sets registry variables, then uses LotusScript with NSLXODBC to connect to the DB (ConnectTo method).

The only difference I found between users not having issue and those reporting issue is that USER REPORTING ISSUE had new laptop and it had windows 7 OS. 

Lotus Notes Version: 6.5