I'm having exactly the same problem. Have had it for a long time with WinSCP, cross many different versions including the most recent.
It always seems to hand after a period of inactivity, regardless of which server I'm connected to. This happens every time I use it.
Crash details:
Description:
A problem caused this program to stop interacting with Windows.
Problem signature:
Problem Event Name: AppHangB1
Application Name: WinSCP.exe
Application Version: 4.3.2.1201
Application Timestamp: 00000000
Hang Signature: 1df4
Hang Type: 0
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 2057
Additional Hang Signature 1: 1df49069670d22d790c603fb1cc80a23
Additional Hang Signature 2: 1fae
Additional Hang Signature 3: 1faedc0ca963c13e08f6e201f3d43a0a
Additional Hang Signature 4: 1df4
Additional Hang Signature 5: 1df49069670d22d790c603fb1cc80a23
Additional Hang Signature 6: 1fae
Additional Hang Signature 7: 1faedc0ca963c13e08f6e201f3d43a0a
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