pq05401.st ATTEMPTS TO INITIATE A DDE CONVERSATION WITH NETSCAPE NAVIGOTOR ON OS/2 FAILS

The WinDdeInitiate function is used by a client application to
request a DDE conversation with a server applcation.  One of 
the parameters passed on this call is a conversation context.  
The conversation context is a control block with a length of 24 
bytes.  The first field in this structure (ULONG cb) contains the 
length of the structure.  When Netscape Navigator processes 
the WM_DDE_INITIATE message, it checks this field to see if 
it contains the correct value; if it soesn't the conversation is 
rejected. 

DdeClient>>connect:topic: creates a new instance of 
OSConvcontext which is passed as the conversation context 
to the WinDdeInitiate function.  The reference field of 
OSConvcontext is a byte array and when a new instance of 
OSConvcontext is created, this byte array is initialized to 0s.   
As a result, the cb field in the conversation context is 0 and 
Netscape rejects the conversation.

File in pq05401.st to fix this problem.