58776 - Helper apps don't launch

Status: VERIFIED FIXED

(SeaMonkey :: General, defect, P3)

Description

[Jeffrey S. Kobal]

If you configure a helper application for a certain extension/mime type, then 
try to open a file of that type, the helper application is not launched.

The problem is that nsLocalFileOS2.cpp uses the NSPR function 
PR_CreateProcessDetached to launch the helper, and that function uses DosExecPgm 
to create the new process.  However, since MOZILLA.EXE is marked as a VIO 
application (WINDOWCOMPAT) to display the console window, PM applications can't 
be launched via DosExecPgm (which can only start a process of the same type as 
the caller).

Since a helper application might be ANY type (VIO, PM, VDM, etc.), we should not 
be using DosExecPgm to launch it; therefore, we should not be calling the NSPR 
API to do this.  Instead, nsLocalFileOS2::Spawn should call DosStartSession to 
launch the program.

I already have a fix ready for this problem.

Comment 1

[slaquinta]

SCREENED.  VERIFIED AS VALID.

Comment 2

[Mike Kaply [:mkaply]]

Assign

Comment 3

[Mike Kaply [:mkaply]]

Fix checked in.

Comment 4

[Jeffrey S. Kobal]

Verified - fixed.