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HMP Release 2.0 for Windows Software Installation Guide — December 2005 41
Troubleshooting
However, the cleanup utility does remove the DlgcInstall.log file (for more information about the
cleanup utility, refer to Section 4.8, “Uninstall Cleanup Utility”, on page 44).
The installation log (DlgcInstall.log) is created in the directory pointed to by the value of the
environment variable %TEMP%. (To find out what the %TEMP% directory is, type
echo %TEMP%
on a command prompt and note down the path displayed.) The default value of this variable is
C:\Documents and Settings\<userid>\Local Settings\temp, where <userid> is your Windows
Login ID.
Notes: 1. The location of %TEMP% can change for multiple remote logins (for example, Terminal
Services Client). For the first session, the directory “1” will be appended to the path. For the
second session, the directory “2” will be appended to the path, and so on.
2. Because the value of %TEMP% contains a login ID, if one user installs the software and a
different user uninstalls the software, the uninstall information will not be appended to the install
log since it is in a different directory. The result is two log files, one for install, one for uninstall.
4.4 APIC Timer Incompatible
The HMP installation process checks the Windows Registry to see if ACPI (the Windows operating
system's Advanced Configuration and Power Interface) is enabled in a manner that will interfere
with the APIC (the host's Advanced Programmable Interrupt Controller) timer and disables the
APIC driver if that condition exists. Near the end of an interactive install, a pop-up window
(Figure 9) will notify you about this change. The HMP installation process will also create a record
on the system indicating that this was done. When the APIC driver is disabled, HMP falls back to
the software-based timer.
Note: If the APIC driver is disabled, HMP operation may be erratic or impossible if more than a few
channels are used.
Figure 9. APIC Timer Message
4.5 Disabling the Windows Driver Signing Check
You may see a “Security Alert - Driver Installation” message during installation. This is just a
warning message, and HMP will install properly after you click Yes. However, if you want to
prevent this message from appearing, you can disable the Windows driver signing check. If you
want to perform a silent install, you must disable the Windows driver signing check. The procedure
is as follows:
1. Go to the Control Panel.