(   Resolving IP Application Instability?   The Question is:    L We have occasionally experienced a "hang" when issuing a tcpip "connect" via.  sys$qiow(tcpipChan, IO$_ACCESS, &amp;iosb, ..   N This has happens when the remote host has "a problem" (it is a vendor suppliedF  windoze XP system and sometimes the vendor's application goes wild orM  something).  But what ever the case, shouldn't the qiow return with an error   at some point instead of hangM ing?  Are they any patches for this behavior? Or must I use a qio version and 3  cancel the i/o after waiting for a specified time?  Thanks for any advice, John  The Answer is :   E   Please contact the support center, as details of the TCP/IP version D   and ECO (V5.4 with ECO being current, as of this writing), as wellB   as details of the hang (preferably leading to a way to reproduceD   the configuration), will be required.  This can discussion can and?   likely should also involve the third-party vendor, obviously.    A   Depending on what is actually occuring on the remote end of the 7   connection, the connection might well appear to hang.    >   You can certainly issue cancellation requests, but these can@   variously be as problematic as the hang itself -- applications9   and networks in indeterminant states tend not to cancel =   particularly cleanly.  An asynchronous call and a timer, or =   a synchronous call and an AST on a timer can potentially be    used to cancel the operation.    0  Answer written or last revised on  13-APR-2004 