Jana,
You will need two separate installer for this.
one is for the 32bit (having the platform marked as 'N')
- Addon compiled as 32 bit
- Reference the SAPbobsCOM of 32 bit
another for 64 bit (having the platform marked as 'X')
- Addon compiled as 64 bit
- Reference the SAPbobsCOM of 64 bit
Once you have both installer,
Register both in the server.
Go to each of the pc and install. SBO will pick the correct version (x86/x64)
Regards
Edy