Почитайте предыдущую тему (где написано, что стопорится установка) - там есть слова про убирание лишнего в системных переменных и чистку реестра.
кроме того - вы про то чего не надо в доке по инсталляции смотрел? Типа:
Do not install the Web server (for example: IIS delivered with Windows server).
Do not install the LDAP server (for example: Active Directory delivered with Windows server).
Path: The Path environment variable giving the access path to Windows and its dlls is updated
after installation of OmniVista 4760 and Sybase and must not be corrupted.
- Prior to installation, the path should be Path = C:\winnt\system32;C:\winnt;.
- If the path is too long, installation may be aborted. In this case, paths that are not required
should be deleted.
- Make sure the Path contains no obsolete paths or duplicated items (;; or \\).
Hence hostname and netbiosname
- must not be composed of digits and needs to start with a letter
- must have less than 15 characters
- must not include characters like "."
With this limitation names like 4760, alcatelomnivista4760, omnivista.server are not allowed.