PRB: Current Directory Changes After OL2000 Installation (245557)

MORE INFORMATION

Workaround

Begin by assuming the directory will change. First thing to do in the application is to select your current directory. Then, make a call to MAPIInitialize thereby forcing the directory to change. Finally, calculate a relative path between the two.

The following CDO code written in Microsoft Visual Basic and Extended MAPI code written in Microsoft Visual C++ can be used to reproduce this issue:

Visual Basic Code to Reproduce Issue:

' This sample assumes a reference to the CDO library. 
'
Dim objSess As MAPI.Session

Sub Main()
    'Display the default drive and dir, as well as that on C: and D:
    MsgBox "Def: " & CurDir & vbCrLf & _
           "Drive C: " & CurDir("C") & vbCrLf & _
           "Drive D: " & CurDir("D")

    'The following line of code will result in default drive and dir
    'changing. This is a major problem for apps that depend on relative
    'pathing.
    Set objSess = CreateObject("mapi.session")

    'Note drive and dir is different than on first msgbox
    MsgBox "Def: " & CurDir & vbCrLf & _
           "Drive C: " & CurDir("C") & vbCrLf & _
           "Drive D: " & CurDir("D")
End Sub
				

Visual C++ Code to Reproduce Issue:

#include "windows.h"
#include "mapix.h"
#include "stdio.h"

void main()
{
	char	sDir[MAX_PATH];

	if(GetCurrentDirectory(MAX_PATH, sDir))
	{
		printf("Starting : %s\n", sDir);
	}

	HRESULT hr = MAPIInitialize(NULL);

	if(GetCurrentDirectory(MAX_PATH, sDir))
	{
		printf("Post Init: %s\n", sDir);
	}

	LPMAPISESSION	pSession = NULL;

	hr = MAPILogonEx(NULL, NULL, NULL, MAPI_LOGON_UI, &pSession);

	if(GetCurrentDirectory(MAX_PATH, sDir))
	{
		printf("Post Logon: %s\n", sDir);
	}
        
         pSession->Logoff(0, 0, 0);
	if (pSession) pSession->Release();

	MAPIUninitialize();
}
				

This behavior has also been reported to occur on calls to other MAPI functions besides MAPIInitialze.