Git Windows with Apache #126

Hi,
I'm sorry but I have many thing I don't understand.

1. Git-1.8.3-preview20130601.exe and msysGit-netinstall-1.8.3-preview20130601.exe is diferent. git is windows executable directly and msysgit recopile all and have use mingw shell. I understand true?
2. On a Windows XP i have installed UniServer (http://www.uniformserver.com/) and I want to use it for give access all pc to that remote repository by http. I know exist git-http-backend.exe and I try to use this for connect to my repository.
   Now i can't arrive to a solution with apache configuration.
   What i know is on apache I have several application than I can't give a root to git but I want to use /git.
   I try this configuration:

SetEnv GIT_PROJECT_ROOT C:/repository/git
SetEnv GIT_HTTP_EXPORT_ALL
ScriptAliasMatch "(?x)^/git/(.*/(HEAD | info/refs | objects/(info/[^/]+ | [0-9a-f]{2}/[0-9a-f]{38} | pack/pack-[0-9a-f]{40}\.(pack|idx)) | git-(upload|receive)-pack))$"  "C:/Programmi/Git/libexec/git-core/git-http-backend.exe/$1"

<Directory /git/>
    Options +ExecCGI
    Allow from all
</Directory>

but don't work with error 404.

if is not here for ask sugest can you sugest a place for ask?

thenks
Saul