You are running a 32-bit application on a computer that is running a 64-bit version of Windows Vista. The application uses the NetBIOS API to communicate over the network. In this Windows on Windows 64 (WOW64) environment, the 32-bit application can open a connection, and it can send data. However, the application cannot use the NetBIOS API to receive data.

For example, the 32-bit application successfully makes an NCBSEND command call. However, the NCBRECVANY command cannot receive data correctly.

Note: This problem does not occur in the following scenarios:

• You run the 32-bit application in a 32-bit version of Windows Vista.
• You compile code for the 32-bit application into a 64-bit application. Then, you run the 64-bit application in the 64-bit version of Windows Vista.