Microsoft has issued an alert about interoperability problems with its ActiveSync 4.0 synchronisation software for mobile devices.
Some users of ActiveSync 4.0 have reported difficulties when using their USB connection to link to a device with the Windows Mobile 5.0 operating system.
“In many cases, these challenges are likely caused by interoperability with desktop firewall applications or applications that manage network traffic,” said a Microsoft statement. “These applications appear to conflict with the TCP traffic between a device and the PC.”
The supplier has scheduled an update for ActiveSync in late November, although it offers advice on solving conflict problems manually on www.microsoft.com/windowsmobile.
Devices affected include the Orange SPV M5000, T-Mobile Vario and MDA Pro, O2 XDA Exec, XDA Mini S, and XDA Phone, Dell Axim X51 series, and HP PPC series.