ZXnet

Enabling Visual Studio 97 InfoViewer Help on Windows XP SP2

Windows XP SP2 seems to disable the MK Protocol. This protocol is used by Developer Studio 5 and InfoViewer 5 (maybe versions 6 too?) to access online documentation. With this protocol disabled the online documentation is inaccessable.

Access to documentation in Developer Studio and InfoViewer can be re-enabled by applying the following to the system registry:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_DISABLE_MK_PROTOCOL]
@=""
"MSDEV.EXE"=dword:00000000
"IV5.EXE"=dword:00000000

This will make documentation available in Developer Studio and InfoViewer work again. It is available as a nice handy registry import file - vs97help_fix.reg.

See Also

• MK Protocol Support on MSDN