WinhttpTracecfg.exe for Vista does not exist, so how can you get a WinHttp trace in Vista and above?
WinHttpTraceCfg.exe has been replaced in Vista and above with the netsh winhttp command.
see this blog:
http://blogs.msdn.com/wndp/archive/2007/03/21/winhttp-configuration-for-windows-vista.aspx
A typical command to enable full tracing for WinHttp would look like this:
C:\Windows\system32>netsh winhttp set tracing trace-file-prefix="C:\Temp\WinHttpLog" level=verbose format=hex state=enabled
You would reproduce the issue and then turn off tracing like this:
C:\Windows\system32>netsh winhttp set tracing state=disabled
This would leave the other parameters you set previously to remain so the next time you want to enable tracing simply type:
C:\Windows\system32>netsh winhttp set tracing state=enabled
Other parameters are available:
C:\Windows\system32>netsh winhttp set tracing
will show you the options:
Usage: set tracing
[output=]file|debugger|both
[trace-file-prefix=]<string>
[level=]default|verbose
[format=]ansi|hex
[max-trace-file-size=]<number>
[state=]enabled|disabled
Parameters:
Tag Value
trace-file-prefix - Prefix for the log file (can include a path)
specify "*" to delete an existing prefix
output - Where the trace entries are written/displayed to
level - How much information to log
format - Display format of network traffic (hex or ansi)
max-trace-file-size - Maximum size of the trace file (in bytes)
state - Enables or disables winhttp tracing
Examples:
set tracing trace-file-prefix="C:\Temp\Test3" level=verbose format=hex
set tracing output=debugger max-trace-file-size=512000 state=enabled
You can display the existing settings with this command:
C:\Windows\system32>netsh winhttp show tracing
Current WinHTTP Tracing settings:
Tracing is not enabled.
Trace File Prefix: C:\Temp\Test3
Trace Output: file
Trace Level: verbose (headers, APIs, and entity body)
Network Traffic Format: hex
Maximum size of trace file (in bytes): 65535
Let me know if this helps!
