I had Multi-vendor shipping (MVS 1.0) installed on my system. Since that installation I can no longer add a handling fee to my UPS XML and DHL shipments. If I add the handling to the specific shipping module it doesn't add the handling fee. If I add a handling fee to the specific vendor, the handling fee is only added to USPS and pickup shipments. DHL and UPS XML shipping fees are unaffected. Two developers have looked at the problem and have been unable to fix it.