HAC Innovations Limited

Info & Download Page

Last Update

1st March 2026

HACI - PRO

eTANK - PRO

PLEASE SEE CONDITIONS OF USE & ADMIN SECTION

DISCOUNT NOW AVAILABLE FOR ORDERS IN EXCESS OF 10 LICENCES

HACI PRO IS NOW AVAILABLE IN PADLOCK FORMAT

IMPORTANT NOTE

IF YOUR ANTI-MALWARE DETECTS MALWARE IN THE LOCKXLS VERSION - DOWNLOAD THE PADLOCK VERSION

NOTE:- EC2 2023 CANNOT BE USED FOR COMMERCIAL DESIGN UNTIL THE FULL SUITE OF NEW CODES ARE ISSUED

THIS INCLUDES EC0, EC1 & NATIONAL ANNEXES - ESTIMATED DATE - 2026

PROGRAM INCLUDES SERVICE STRESS LIMITS AND ALERTS TO AS 3735 & ACI 224-1R

INCLUDES CO2e CALCULATION

NOTE

The EXE version is safe and does not require you to download any other program

If you have any security issues - please contact your IT Department and see below.

Some Malware and Anti Virus programs can dislike the Lockxls exe file system.

This is in spite of the program having been in use for over 10 years with no adverse affects.

As of 12th July 2025 both Norton and Malwarebytes are accepting Lockxls.

Otherwise, you can try the Padlock version of HACI PRO

If the control ribbon is unavailable - use Ctr Z if you need to Undo any Input.

These version are now protected without the network adaptor ID check

This is to reduce the need for repeated key code requests when moving between cable and wi-fi connections.

It may require a different key code when updating from an older version of the program.

Note - the program is locked to an individual computer (CPU and Hard Disk) - not an individual user

The XLSPadlock protection system is similar to LockXLS and the files have a P suffix.

Currently it is not possible to save the LockXLS eTank-Pro - possibly due to file size.

XLSPadlock will require you to email us your computer ID as before, so we can send a key code.

When you open the downloaded XLSPadlock exe file for the first time, select Original File.

To save your file under a different name - select SAVE and then type the xlsc filename you want.

For subsequent use, you must open the original downloaded XLSPadlock exe file first.

It will then allow you to open your previously saved XLSPadlock xlsc type file.

Links to Current Programs

Last Update

HACI - PRO

LockXLS

HACI-PRO-6-3-6.zip

See Important Note Above

24.0

1st March 2026

HACI - PRO

XLSPadlock

HACI-PRO-6-3-6-P.zip

Universal 32BIT & 64BIT

43.0

1st March 2026

eTANK - PRO

XLSPadlock

eTANK-PRO-1-1-19-P.zip

Universal 32BIT & 64BIT

82.0

24th November 2025

eTANK - PRO allow the instantaneous first pass design and costing of a Complete Tank - See Example Tab

Note - the eTANK programs take a minute or so to load up. eTANK-PRO takes longer than eTANK due to its size.

BS Charts - Movie

BSCharts.wmv

2.0

15th March 2010

EC2 Charts - Movie

EC2Charts.wmv

2.2

15th March 2010

eTank-Introduction - Video

eTankVideo.zip

41.0

10th February 2025

Download and extract the required zip file and save the exe file to a directory on your own computer.

If your anti-virus alerts an insecure download blocked - select Keep and it will download.

Only open and run files from your own computer - do not try and open and run from the server or cloud drives

When you open the file it will give you a warning message as below - Select More info and then Run anyway on the 2nd message.

For Excel 2010, you may need to start Excel, then go to the File tab, then select Options.

Then select Trust Centre Settings, then Protected View and then make sure the top 2 boxes are clear.

You should only need to do this once as the settings will remain in force for future sessions.

Save the opened downloaded file with a new name to enable editing.

File Suffix Indicates Update Nature i.e. Major - Intermediate - Minor

The Movies show how the Service Stress, N & M and Ultimate Stress charts adjust as X varies from -∞ to H / λ

HACI-PRO includes UK National Annex Amendment No 1. Dec 2009.

The program may be re-loaded between revisions to correct minor typos, update info etc. - Check Last Update Date.

See PRO version change history at the foot of this page.

See eTANK-PRO Changes on the Change History Tabs

HACI-PRO allows up to 24 designs to either BS8110 & BS8007 or EC2 or IS456

HACI - PRO & eTANK - PRO now incorporate provisions of EC2 2023

Activation & Updates

The Lockxls programs give you a 30 day free trial. To use it after that time, you will need to subscribe for a year (or agreed part of) by sending us an email with your computer ID in text format - not a screenshot. The program should automatically ask you to do this. If the program is not doing it automatically, click on the LockXLS Options button next to the Help button - see below and then click on the Register button to generate the ID. On receipt of payment, we will generate a key code which will only work on the computer that generated the ID and email it back to you. The program will be updated to add in new features, keep up to date with code changes and absorb comments and make corrections. Therefore, always check this INFO file via the Front tab of the program to see that you are using the latest version or update.

De-Activation

If a computer is no longer required to run Lockxls, it is vital to de-activate the program before the licence can be transferred to another computer. This will happen if a member of staff leaves and returns the computer to the IT department and the following must be done by the user beforehand. Select the Lockxls Options button as shown on the screenshot below. Then select de-activate. Then confirm YES. The program will then generate a de-activation code that should be copied to the clipboard and then pasted into an email to HACI. Do not send a screenshot. On receipt of the code, HACI can then release a key code to another user.

TERMS AND CONDITIONS

NOTE

In order to cover the substantial time involved in developing the program to include the provisions of the major EC2 update, the prices are

increased annually.

However, users can now take comfort in the fact that HACI PRO and eTank-PRO have now been "Future-Proofed" for 20 years.

Licence

Annual Subscription for Orders Placed

Fee

Before

After

16th March

HACI PRO

FREE

£360

£395

/ Licence

You must purchase a year's subscription to activate the product

Part year licences are offered to align with the largest order.

eTANK-PRO

FREE

£360

£395

/ Licence

You must purchase a year's subscription to activate the product

CONDITIONS OF USE

HACI-PRO

This program uses Excel and the copyright rests with HACI

It has been tested and used by HACI and it is

believed to be accurate for use.

It can be used commercially; however HACI

cannot be held liable for any errors in the program or inappropriate

use of the program.

It should be used with the

codes of practice and associated literature.

eTank-PRO

This program uses Excel and the copyright rests with HACI

It has been tested and used by HACI and it is

believed to be accurate for use as a first pass design.

It can be used commercially; however, HACI

cannot be held liable for any errors in the program or inappropriate

use of the program.

It should be used with the

codes of practice and associated literature.

ADMIN

VAT

HACI are not registered for VAT, So VAT SHOULD NOT be added to these orders.

Quotations

All quotations will be based on the sums displayed on this page - adjusted for part payment if applicable.

So, all quotations will now be provided by email with an HACI Logo signature

Invoices

Payments to HACI account via BACS - An invoice will be provided on receipt of Order Number

Payments to HACI account via PAYPAL - A PAID invoice will be provided on receipt of Order Number and proof of Payment

Delivery & Activation

Delivery will only be upon payment. It is via the provision of a key code as per the instructions on this page.

Once payment has been made it becomes the responsibilty of the purchaser follow these procedures.

Separate delivery instructions emails will not be sent out.

The key codes will generally be provided within 24 hrs of receipt of Order Number - User Name - User ID generated by program.

This period will extend due to weekends and UK public holidays, so the user must plan for that.

De-Activation

If a user leaves the company, any Lockxls licence MUST be de-activated by the user before handing back the computer.

BULK ORDERS OF HACI PRO WILL ATTRACT A DISCOUNT OF THE VALUE OF 1 LICENCE PER MULTIPLE OF 10 LICENCES

So, 10 to 19 licences attracts 1 licence discount value, 20 to 29 licences attracts 2 licences discount value etc.

The key code will be valid for one year (or less if aligning) from purchase and will work with any updates .

Thereafter it can be extended by re-newing the annual subscription.

The annual subscription allows us to keep the program up to date.

HACI now works towards one primary renewal date per customer / cost centre.

Any new requests for licences will be aligned with the expiry of the largest current order and the fee will be pro rata.

All orders must have an order number that the users have access to.

See above for multiple licence order discounts.

A key code will only be issued provided:-

The user states the order reference that the licence relates to. This enables HACI to give the correct period.

The user copies the Lockxls or Padlock generated computer ID to the clipboard and then pastes it into an email to HACI

A screenshot of the computer ID will not be processed as it is difficult to distinguish I from 1 and 0 from O etc.

Please pay via this Paypal Link.

PAYPAL

It will give you the option of a direct payment for HACI PRO or eTANK PRO.

It also gives you the option to Top Up in increments of £1,000, £100, £10 or £1.

This will allow for the payment of part year licences and for other services.

See Screenshot

You may have to do several payments to make up the exact sum

£365 would require £100 x 3 then £10 x 6 then £1 x 5 i.e. 3 payments

For multiple orders you can also pay via an order number and an invoice.

For firms with multiple users, we encourage you to align your orders to one annual date.

We can assist you with this by offering partial year licences leading up to the main renewal date.

We are also offering discounts to multiple licence orders in excess of 10 - see above.

Existing customers who renew or request new users, please note that the same pricing and terms apply for each order.

The terms are on this page, so it should not be necessary to revisit terms and conditions with each new order request.

For support, email:-

support@haciservices.co.uk

For invoice orders, email:-

robin.atkinson@haciservices.co.uk

Or Contact HACI on:-

07971 670627

Thank you

Robin Atkinson

See separate tabs for change history