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I just ran procmon to see if I could figure out what's going on. Turns out WinGraphviz needs write access to the root of the Windows volume (C:\ in this case). It tried to create a file "C:\t73k" which I presume is the graph itself.

It's pretty shocking that a component designed to be used on ...

Has anyone ever gotten relationship graphs to work on Windows/IIS? Every few month I'll give it another try and can never seem to get anywhere. I've installed WinGraphviz and enabled relationship graphs, but it never works. I always get an access violation like "PHP has encountered an Access ...

I guess it's related to the number of relationships. The bugs I'm closing are all related to a main parent issue. I thought I read somewhere that the relationship performance problems had been solved, but I guess not. Closing a bug with no relationships is fast.

Recently, I been trying to catch up on closing resolved issues. For some reason closing a bug is now very slow. Attempting to use a group action to close more than one at a time will always cause a timeout and the action will not complete. Only one or two bugs will be closed. I didn't have this ...

Actually, vasilisk is right. This is currently broken in RC1. The code in bug_actiongroup_page.php is creating a pick list of users who are allowed to assign bugs, not users who are allowed to handle bugs.

You can workaround the issue by changing line 214 in bug_actiongroup_page.php from:
print ...

I've got a little closer to getting this one working. PHP 4.3.11 seems to have fixed the some of the COM() problems, but I can still only get the graphs to work if I make the IUSR account (used for annonymous access in IIS) a member of Administrators. Otherwise, PHP reports an access violation.

So ...

Thanks for the help, but still no luck. The proc_open and passthru functions both fail. I'm sure it's some combination of file permissions and IIS6 security, but I can't figure it out.

What version of Windows/IIS are you using? Did you do anything special with permissions or IIS config?

I can't seem to get relationship graphs to work. Has anyone else had any luck with this?

Here's my config:
Windows Server 2003
PHP 4.3.10
Mantis 0.19.2
WinGraphviz 1.02.25

Here's what I've done:
Installed WinGraphviz
Confirmed that it works with the test script from the WinGraphviz website ...