What is bad request invalid verb?

Answer 1

SYMPTOMSIn Microsoft internet Information Services (IIS) 6.0, when a request contains a header name that includes a question mark (?) character or another separator character, Http.sys rejects the request and sends the following error message to the requestor: Bad Request (Invalid Header Name). Additionally, when you use lowercase HTTP verbs like "get," Http.sys rejects the request and sends the following error message to the requestor: "Bad Request (Invalid Verb)".

CAUSE

This problem occurs because HTTP specifications state that HTTP requests that contain separator characters in the header are not valid. The HTTP specifications also state that HTTP verbs are case-sensitive.

RESOLUTION

Hotfix InformationA supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site: http://go.Microsoft.com/?linkid=6294451 (http://go.Microsoft.com/?linkid=6294451)Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site: http://support.Microsoft.com/contactus/?ws=support (http://support.Microsoft.com/contactus/?ws=support)

noTe: For more information on this topic please see the link...http://support.Microsoft.com/kb/828726