* #4373, fix possible winreg value type difference * add a test for ProxyOverride and ProxyEnable on win32 * add tests for winreg key ProxyEnable with two possible types * fixing AppVeyor failures
* #4373, fix possible winreg value type difference * add a test for ProxyOverride and ProxyEnable on win32 * add tests for winreg key ProxyEnable with two possible types * fixing AppVeyor failures